7x-7-8x=-15

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Solution for 7x-7-8x=-15 equation: 


Simplifying
7x + -7 + -8x = -15

Reorder the terms:
-7 + 7x + -8x = -15

Combine like terms: 7x + -8x = -1x
-7 + -1x = -15

Solving
-7 + -1x = -15

Solving for variable 'x'.

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

Add '7' to each side of the equation.
-7 + 7 + -1x = -15 + 7

Combine like terms: -7 + 7 = 0
0 + -1x = -15 + 7
-1x = -15 + 7

Combine like terms: -15 + 7 = -8
-1x = -8

Divide each side by '-1'.
x = 8

Simplifying
x = 8

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