15+x-7=

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Solution for 15+x-7= equation: 


Simplifying
15 + x + -7 = 0

Reorder the terms:
15 + -7 + x = 0

Combine like terms: 15 + -7 = 8
8 + x = 0

Solving
8 + x = 0

Solving for variable 'x'.

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

Add '-8' to each side of the equation.
8 + -8 + x = 0 + -8

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

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

Simplifying
x = -8

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