7-5+x=15

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Solution for 7-5+x=15 equation: 


Simplifying
7 + -5 + x = 15

Combine like terms: 7 + -5 = 2
2 + x = 15

Solving
2 + x = 15

Solving for variable 'x'.

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

Add '-2' to each side of the equation.
2 + -2 + x = 15 + -2

Combine like terms: 2 + -2 = 0
0 + x = 15 + -2
x = 15 + -2

Combine like terms: 15 + -2 = 13
x = 13

Simplifying
x = 13

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