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Solve Equations with Variables on Both Sides using the Distributive Property>
Solve Equations – Variables on Both Sides (Distributive Property) 4Solve Equations – Variables on Both Sides (Distributive Property) 4
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Question 1 of 5
1. Question
Solve for aa3(2a-4)=4a-63(2a−4)=4a−6- a=a= (3)
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To solve for aa, get aa by itselfDistribute the value inside the parenthesis.33(2a-4)(2a−4) == 4a-64a−6 (2a×(2a×33)-(4×)−(4×33)) == 4a-64a−6 6a-126a−12 == 4a-64a−6 Get the aa variable on one side of the equation6a-126a−12 -4a−4a == 4a-64a−6 -4a−4a Subtract 4a4a from both sides 6a-126a−12 -4a−4a == 4a4a-6−6 -4a−4a 4a-4a4a−4a cancels out 2a-122a−12 == -6−6 2a-122a−12 +12+12 == -6−6 +12+12 Add 1212 to both sides 2a2a-12−12 +12+12 == -6−6 +12+12 -12+12−12+12 cancels out 2a2a == 66 2a2a÷2÷2 == 66÷2÷2 Divide both sides by 22 22aa÷2÷2 == 66÷2÷2 ×2÷2×2÷2 cancels out aa == 33 a=3a=3 -
Question 2 of 5
2. Question
Solve for xx5(2x+7)-6x=8+x5(2x+7)−6x=8+x- x=x= (-9)
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To solve for xx, get xx by itselfDistribute the value inside the parenthesis.55(2x+7)-6x(2x+7)−6x == 8+x8+x (2x×(2x×55)+(7×)+(7×55)-6x)−6x == 8+x8+x 10x+35-6x10x+35−6x == 8+x8+x 4x+354x+35 == 8+x8+x Get the xx variable on one side of the equation4x+354x+35 -x−x == 8+x8+x -x−x Subtract xx from both sides 4x+354x+35 -x−x == 88+x+x -x−x x-xx−x cancels out 3x+353x+35 == 88 3x+353x+35 -35−35 == 88 -35−35 Subtract 3535 from both sides 3x3x+35+35 -35−35 == 88 -35−35 35-3535−35 cancels out 3x3x == -27−27 3x3x÷3÷3 == -27−27÷3÷3 Divide both sides by 33 33xx÷3÷3 == -27−27÷3÷3 ×3÷3×3÷3 cancels out xx == -9−9 x=-9x=−9 -
Question 3 of 5
3. Question
Solve for nn3(n+8)=3(2n-2)3(n+8)=3(2n−2)- n=n= (10)
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To solve for nn, get nn by itselfDistribute the value inside the parenthesis.33(n+8)(n+8) == 33(2n-2)(2n−2) (n×(n×33)+(8×)+(8×33)) == (2n×(2n×33)+(-2×)+(−2×33)) 3n+243n+24 == 6n-66n−6 Get the nn variable on one side of the equation3n+243n+24 -24−24 == 6n-66n−6 -24−24 Subtract 2424 from both sides 3n3n+24+24 -24−24 == 6n-66n−6 -24−24 24-2424−24 cancels out 3n3n == 6n-306n−30 3n3n -6n−6n == 6n-306n−30 -6n−6n Subtract 6n6n from both sides 3n3n -6n−6n == 6n6n-30−30 -6n−6n 6n-6n6n−6n cancels out -3n−3n == -30−30 -3n−3n÷(-3)÷(−3) == -30−30÷(-3)÷(−3) Divide both sides by -3−3 -3−3nn÷(-3)÷(−3) == -30−30÷(-3)÷(−3) ×(-3)÷(-3)×(−3)÷(−3) cancels out nn == 1010 n=10n=10 -
Question 4 of 5
4. Question
Solve for xx3x+15=2x-123x+15=2x−12- x=x= (7/4)
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Chapters- Chapters
To solve for xx, get xx by itselfMultiply both sides of the equation by 553x+153x+15×5×5 == 2x-122x−12×5×5 5(3x+1)55(3x+1)5 == 2x-122x−12×5×5 3x+13x+1 == 5(2x-1)25(2x−1)2 The coefficient 5555 cancels out 3x+13x+1 == (2x×5)-(1×5)3(2x×5)−(1×5)3 Distribute the value inside the parenthesis 3x+13x+1 == 2x-532x−53 Next, multiply both sides of the equation by 22(3x+1)(3x+1)×2×2 == 10x-5210x−52×2×2 (3x+1)(3x+1)×2×2 == 2(10x-5)22(10x−5)2 2(3x+1)2(3x+1) == 10x-510x−5 The coefficient 2222 cancels out (3x×2)+(1×2)(3x×2)+(1×2) == 10x-510x−5 Distribute the value inside the parenthesis 6x+26x+2 == 10x-510x−5 Now, subtract 10x10x from both sides of the equation6x+26x+2 -10x−10x == 10x-510x−5 -10x−10x 6x+26x+2 -10x−10x == 10x10x-5−5 -10x−10x 10x-10x10x−10x cancels out -4x+2−4x+2 == -5−5 Now, subtract 22 from both sides of the equation-4x+2−4x+2 -2−2 == -5−5 -2−2 -4x−4x+2+2 -2−2 == -5−5 -2−2 2-22−2 cancels out -4x−4x == -7−7 Finally, divide both sides of the equation by -4−4.-4−4xx÷(-4)÷(−4) -4x−4x÷(-4)÷(−4) == -7−7÷(-4)÷(−4) == -7−7÷(-4)÷(−4) ×(-4)÷(-4)×(−4)÷(−4) cancels out x = 74 x=74 -
Question 5 of 5
5. Question
Solve for xx+36-x-15=13- x= (11)
Hint
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Chapters- Chapters
To solve for x, get x by itself6, 5 and 3 has 30 as a common denominatorMake sure that fractions have the common denominator which is 30x+36-x-15 = 13 x+36×55-x-15×66 = 13×1010 5(x+3)30-6(x-1)30 = 1030 Distribute the values inside the parenthesis5(x+3)30-6(x-1)30 = 1030 5(x+3)30 = (x×5)+(3×5)30 = 5x+1530 6(x-1)30 = (x×6)-(1×6)30 = 6x-630 5x+1530-6x-630 = 1030 Combine the fractions and find the value of x(5x+15)-(6x-6)30 = 1030 -x+2130 = 1030 Combine like terms -x+2130×30 = 1030×30 Multiply both sides by 30 30(-x+21)30 = 30(10)30 -x+21 = 10 The coefficient 3030 cancels out on both sides -x+21 -21 = 10 -21 Subtract 21 from both sides -x+21 -21 = 10 -21 21-21 cancels out -x = -11 -x-1 = -11-1 Divide both sides by -1 x = 11 x=11
Quizzes
- One Step Equations – Add and Subtract 1
- One Step Equations – Add and Subtract 2
- One Step Equations – Add and Subtract 3
- One Step Equations – Add and Subtract 4
- One Step Equations – Multiply and Divide 1
- One Step Equations – Multiply and Divide 2
- One Step Equations – Multiply and Divide 3
- One Step Equations – Multiply and Divide 4
- Two Step Equations 1
- Two Step Equations 2
- Two Step Equations 3
- Two Step Equations 4
- Multi-Step Equations 1
- Multi-Step Equations 2
- Solve Equations using the Distributive Property 1
- Solve Equations using the Distributive Property 2
- Solve Equations using the Distributive Property 3
- Equations with Variables on Both Sides 1
- Equations with Variables on Both Sides 2
- Equations with Variables on Both Sides 3
- Equations with Variables on Both Sides (Fractions) 1
- Equations with Variables on Both Sides (Fractions) 2
- Solve Equations – Variables on Both Sides (Distributive Property) 1
- Solve Equations – Variables on Both Sides (Distributive Property) 2
- Solve Equations – Variables on Both Sides (Distributive Property) 3
- Solve Equations – Variables on Both Sides (Distributive Property) 4
- Writing Equations 1
- Writing Equations 2
- Writing Equations 3
- Writing Equations 4
- Equation Word Problems (Age) 1
- Equation Word Problems (Money) 1
- Equation Word Problems (Harder) 1
- Equation Problems with Substitution 1
- Equation Problems (Geometry) 1
- Equation Problems (Geometry) 2
- Equation Problems (Perimeter)
- Equation Problems (Area)
- Solve for a Variable or Formula 1
- Solve for a Variable or Formula 2
- Solve for a Variable or Formula 3