11x+12=9x-9

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Solution for 11x+12=9x-9 equation:


Simplifying
11x + 12 = 9x + -9

Reorder the terms:
12 + 11x = 9x + -9

Reorder the terms:
12 + 11x = -9 + 9x

Solving
12 + 11x = -9 + 9x

Solving for variable 'x'.

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

Add '-9x' to each side of the equation.
12 + 11x + -9x = -9 + 9x + -9x

Combine like terms: 11x + -9x = 2x
12 + 2x = -9 + 9x + -9x

Combine like terms: 9x + -9x = 0
12 + 2x = -9 + 0
12 + 2x = -9

Add '-12' to each side of the equation.
12 + -12 + 2x = -9 + -12

Combine like terms: 12 + -12 = 0
0 + 2x = -9 + -12
2x = -9 + -12

Combine like terms: -9 + -12 = -21
2x = -21

Divide each side by '2'.
x = -10.5

Simplifying
x = -10.5

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