12.5(x+4)=2x-2(4-x)-7

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Solution for 12.5(x+4)=2x-2(4-x)-7 equation:


Simplifying
12.5(x + 4) = 2x + -2(4 + -1x) + -7

Reorder the terms:
12.5(4 + x) = 2x + -2(4 + -1x) + -7
(4 * 12.5 + x * 12.5) = 2x + -2(4 + -1x) + -7
(50 + 12.5x) = 2x + -2(4 + -1x) + -7
50 + 12.5x = 2x + (4 * -2 + -1x * -2) + -7
50 + 12.5x = 2x + (-8 + 2x) + -7

Reorder the terms:
50 + 12.5x = -8 + -7 + 2x + 2x

Combine like terms: -8 + -7 = -15
50 + 12.5x = -15 + 2x + 2x

Combine like terms: 2x + 2x = 4x
50 + 12.5x = -15 + 4x

Solving
50 + 12.5x = -15 + 4x

Solving for variable 'x'.

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

Add '-4x' to each side of the equation.
50 + 12.5x + -4x = -15 + 4x + -4x

Combine like terms: 12.5x + -4x = 8.5x
50 + 8.5x = -15 + 4x + -4x

Combine like terms: 4x + -4x = 0
50 + 8.5x = -15 + 0
50 + 8.5x = -15

Add '-50' to each side of the equation.
50 + -50 + 8.5x = -15 + -50

Combine like terms: 50 + -50 = 0
0 + 8.5x = -15 + -50
8.5x = -15 + -50

Combine like terms: -15 + -50 = -65
8.5x = -65

Divide each side by '8.5'.
x = -7.647058824

Simplifying
x = -7.647058824

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