x-9=15-15

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Solution for x-9=15-15 equation: 


Simplifying
x + -9 = 15 + -15

Reorder the terms:
-9 + x = 15 + -15

Combine like terms: 15 + -15 = 0
-9 + x = 0

Solving
-9 + x = 0

Solving for variable 'x'.

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

Add '9' to each side of the equation.
-9 + 9 + x = 0 + 9

Combine like terms: -9 + 9 = 0
0 + x = 0 + 9
x = 0 + 9

Combine like terms: 0 + 9 = 9
x = 9

Simplifying
x = 9

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