7x-8x=13-25

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Solution for 7x-8x=13-25 equation: 


Simplifying
7x + -8x = 13 + -25

Combine like terms: 7x + -8x = -1x
-1x = 13 + -25

Combine like terms: 13 + -25 = -12
-1x = -12

Solving
-1x = -12

Solving for variable 'x'.

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

Divide each side by '-1'.
x = 12

Simplifying
x = 12

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