-8x-x+12=39

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Solution for -8x-x+12=39 equation:


Simplifying
-8x + -1x + 12 = 39

Reorder the terms:
12 + -8x + -1x = 39

Combine like terms: -8x + -1x = -9x
12 + -9x = 39

Solving
12 + -9x = 39

Solving for variable 'x'.

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

Add '-12' to each side of the equation.
12 + -12 + -9x = 39 + -12

Combine like terms: 12 + -12 = 0
0 + -9x = 39 + -12
-9x = 39 + -12

Combine like terms: 39 + -12 = 27
-9x = 27

Divide each side by '-9'.
x = -3

Simplifying
x = -3

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