-138-9x+7x=22

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Solution for -138-9x+7x=22 equation: 


Simplifying
-138 + -9x + 7x = 22

Combine like terms: -9x + 7x = -2x
-138 + -2x = 22

Solving
-138 + -2x = 22

Solving for variable 'x'.

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

Add '138' to each side of the equation.
-138 + 138 + -2x = 22 + 138

Combine like terms: -138 + 138 = 0
0 + -2x = 22 + 138
-2x = 22 + 138

Combine like terms: 22 + 138 = 160
-2x = 160

Divide each side by '-2'.
x = -80

Simplifying
x = -80

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