x+87=129

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Solution for x+87=129 equation: 


Simplifying
x + 87 = 129

Reorder the terms:
87 + x = 129

Solving
87 + x = 129

Solving for variable 'x'.

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

Add '-87' to each side of the equation.
87 + -87 + x = 129 + -87

Combine like terms: 87 + -87 = 0
0 + x = 129 + -87
x = 129 + -87

Combine like terms: 129 + -87 = 42
x = 42

Simplifying
x = 42

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