85=7x-5(4x-4)

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Solution for 85=7x-5(4x-4) equation:


Simplifying
85 = 7x + -5(4x + -4)

Reorder the terms:
85 = 7x + -5(-4 + 4x)
85 = 7x + (-4 * -5 + 4x * -5)
85 = 7x + (20 + -20x)

Reorder the terms:
85 = 20 + 7x + -20x

Combine like terms: 7x + -20x = -13x
85 = 20 + -13x

Solving
85 = 20 + -13x

Solving for variable 'x'.

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

Add '13x' to each side of the equation.
85 + 13x = 20 + -13x + 13x

Combine like terms: -13x + 13x = 0
85 + 13x = 20 + 0
85 + 13x = 20

Add '-85' to each side of the equation.
85 + -85 + 13x = 20 + -85

Combine like terms: 85 + -85 = 0
0 + 13x = 20 + -85
13x = 20 + -85

Combine like terms: 20 + -85 = -65
13x = -65

Divide each side by '13'.
x = -5

Simplifying
x = -5

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