8x-9x=12-7

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Solution for 8x-9x=12-7 equation: 


Simplifying
8x + -9x = 12 + -7

Combine like terms: 8x + -9x = -1x
-1x = 12 + -7

Combine like terms: 12 + -7 = 5
-1x = 5

Solving
-1x = 5

Solving for variable 'x'.

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

Divide each side by '-1'.
x = -5

Simplifying
x = -5

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