8-4=2x-5(2x+1)-7

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Solution for 8-4=2x-5(2x+1)-7 equation:


Simplifying
8 + -4 = 2x + -5(2x + 1) + -7

Combine like terms: 8 + -4 = 4
4 = 2x + -5(2x + 1) + -7

Reorder the terms:
4 = 2x + -5(1 + 2x) + -7
4 = 2x + (1 * -5 + 2x * -5) + -7
4 = 2x + (-5 + -10x) + -7

Reorder the terms:
4 = -5 + -7 + 2x + -10x

Combine like terms: -5 + -7 = -12
4 = -12 + 2x + -10x

Combine like terms: 2x + -10x = -8x
4 = -12 + -8x

Solving
4 = -12 + -8x

Solving for variable 'x'.

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

Add '8x' to each side of the equation.
4 + 8x = -12 + -8x + 8x

Combine like terms: -8x + 8x = 0
4 + 8x = -12 + 0
4 + 8x = -12

Add '-4' to each side of the equation.
4 + -4 + 8x = -12 + -4

Combine like terms: 4 + -4 = 0
0 + 8x = -12 + -4
8x = -12 + -4

Combine like terms: -12 + -4 = -16
8x = -16

Divide each side by '8'.
x = -2

Simplifying
x = -2

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