4(7x-1)-4(3x-4)=15x+20

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Solution for 4(7x-1)-4(3x-4)=15x+20 equation:


Simplifying
4(7x + -1) + -4(3x + -4) = 15x + 20

Reorder the terms:
4(-1 + 7x) + -4(3x + -4) = 15x + 20
(-1 * 4 + 7x * 4) + -4(3x + -4) = 15x + 20
(-4 + 28x) + -4(3x + -4) = 15x + 20

Reorder the terms:
-4 + 28x + -4(-4 + 3x) = 15x + 20
-4 + 28x + (-4 * -4 + 3x * -4) = 15x + 20
-4 + 28x + (16 + -12x) = 15x + 20

Reorder the terms:
-4 + 16 + 28x + -12x = 15x + 20

Combine like terms: -4 + 16 = 12
12 + 28x + -12x = 15x + 20

Combine like terms: 28x + -12x = 16x
12 + 16x = 15x + 20

Reorder the terms:
12 + 16x = 20 + 15x

Solving
12 + 16x = 20 + 15x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-15x' to each side of the equation.
12 + 16x + -15x = 20 + 15x + -15x

Combine like terms: 16x + -15x = 1x
12 + 1x = 20 + 15x + -15x

Combine like terms: 15x + -15x = 0
12 + 1x = 20 + 0
12 + 1x = 20

Add '-12' to each side of the equation.
12 + -12 + 1x = 20 + -12

Combine like terms: 12 + -12 = 0
0 + 1x = 20 + -12
1x = 20 + -12

Combine like terms: 20 + -12 = 8
1x = 8

Divide each side by '1'.
x = 8

Simplifying
x = 8

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