-12x-21=9-11x

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Solution for -12x-21=9-11x equation:


Simplifying
-12x + -21 = 9 + -11x

Reorder the terms:
-21 + -12x = 9 + -11x

Solving
-21 + -12x = 9 + -11x

Solving for variable 'x'.

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

Add '11x' to each side of the equation.
-21 + -12x + 11x = 9 + -11x + 11x

Combine like terms: -12x + 11x = -1x
-21 + -1x = 9 + -11x + 11x

Combine like terms: -11x + 11x = 0
-21 + -1x = 9 + 0
-21 + -1x = 9

Add '21' to each side of the equation.
-21 + 21 + -1x = 9 + 21

Combine like terms: -21 + 21 = 0
0 + -1x = 9 + 21
-1x = 9 + 21

Combine like terms: 9 + 21 = 30
-1x = 30

Divide each side by '-1'.
x = -30

Simplifying
x = -30

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