-9-2x=x+9

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Solution for -9-2x=x+9 equation:


Simplifying
-9 + -2x = x + 9

Reorder the terms:
-9 + -2x = 9 + x

Solving
-9 + -2x = 9 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
-9 + -2x + -1x = 9 + x + -1x

Combine like terms: -2x + -1x = -3x
-9 + -3x = 9 + x + -1x

Combine like terms: x + -1x = 0
-9 + -3x = 9 + 0
-9 + -3x = 9

Add '9' to each side of the equation.
-9 + 9 + -3x = 9 + 9

Combine like terms: -9 + 9 = 0
0 + -3x = 9 + 9
-3x = 9 + 9

Combine like terms: 9 + 9 = 18
-3x = 18

Divide each side by '-3'.
x = -6

Simplifying
x = -6

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