x+(x+87)=(x-12)

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Solution for x+(x+87)=(x-12) equation:


Simplifying
x + (x + 87) = (x + -12)

Reorder the terms:
x + (87 + x) = (x + -12)

Remove parenthesis around (87 + x)
x + 87 + x = (x + -12)

Reorder the terms:
87 + x + x = (x + -12)

Combine like terms: x + x = 2x
87 + 2x = (x + -12)

Reorder the terms:
87 + 2x = (-12 + x)

Remove parenthesis around (-12 + x)
87 + 2x = -12 + x

Solving
87 + 2x = -12 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
87 + 2x + -1x = -12 + x + -1x

Combine like terms: 2x + -1x = 1x
87 + 1x = -12 + x + -1x

Combine like terms: x + -1x = 0
87 + 1x = -12 + 0
87 + 1x = -12

Add '-87' to each side of the equation.
87 + -87 + 1x = -12 + -87

Combine like terms: 87 + -87 = 0
0 + 1x = -12 + -87
1x = -12 + -87

Combine like terms: -12 + -87 = -99
1x = -99

Divide each side by '1'.
x = -99

Simplifying
x = -99

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