-138-9x=8x+15

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Solution for -138-9x=8x+15 equation:


Simplifying
-138 + -9x = 8x + 15

Reorder the terms:
-138 + -9x = 15 + 8x

Solving
-138 + -9x = 15 + 8x

Solving for variable 'x'.

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

Add '-8x' to each side of the equation.
-138 + -9x + -8x = 15 + 8x + -8x

Combine like terms: -9x + -8x = -17x
-138 + -17x = 15 + 8x + -8x

Combine like terms: 8x + -8x = 0
-138 + -17x = 15 + 0
-138 + -17x = 15

Add '138' to each side of the equation.
-138 + 138 + -17x = 15 + 138

Combine like terms: -138 + 138 = 0
0 + -17x = 15 + 138
-17x = 15 + 138

Combine like terms: 15 + 138 = 153
-17x = 153

Divide each side by '-17'.
x = -9

Simplifying
x = -9

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