X-72=-87

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Solution for X-72=-87 equation: 


Simplifying
X + -72 = -87

Reorder the terms:
-72 + X = -87

Solving
-72 + X = -87

Solving for variable 'X'.

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

Add '72' to each side of the equation.
-72 + 72 + X = -87 + 72

Combine like terms: -72 + 72 = 0
0 + X = -87 + 72
X = -87 + 72

Combine like terms: -87 + 72 = -15
X = -15

Simplifying
X = -15

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