9x-129=111-x

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Solution for 9x-129=111-x equation:


Simplifying
9x + -129 = 111 + -1x

Reorder the terms:
-129 + 9x = 111 + -1x

Solving
-129 + 9x = 111 + -1x

Solving for variable 'x'.

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

Add 'x' to each side of the equation.
-129 + 9x + x = 111 + -1x + x

Combine like terms: 9x + x = 10x
-129 + 10x = 111 + -1x + x

Combine like terms: -1x + x = 0
-129 + 10x = 111 + 0
-129 + 10x = 111

Add '129' to each side of the equation.
-129 + 129 + 10x = 111 + 129

Combine like terms: -129 + 129 = 0
0 + 10x = 111 + 129
10x = 111 + 129

Combine like terms: 111 + 129 = 240
10x = 240

Divide each side by '10'.
x = 24

Simplifying
x = 24

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