3x+9x-12=11x

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Solution for 3x+9x-12=11x equation:


Simplifying
3x + 9x + -12 = 11x

Reorder the terms:
-12 + 3x + 9x = 11x

Combine like terms: 3x + 9x = 12x
-12 + 12x = 11x

Solving
-12 + 12x = 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.
-12 + 12x + -11x = 11x + -11x

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

Combine like terms: 11x + -11x = 0
-12 + 1x = 0

Add '12' to each side of the equation.
-12 + 12 + 1x = 0 + 12

Combine like terms: -12 + 12 = 0
0 + 1x = 0 + 12
1x = 0 + 12

Combine like terms: 0 + 12 = 12
1x = 12

Divide each side by '1'.
x = 12

Simplifying
x = 12

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