12x-30=9x

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Solution for 12x-30=9x equation:


Simplifying
12x + -30 = 9x

Reorder the terms:
-30 + 12x = 9x

Solving
-30 + 12x = 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.
-30 + 12x + -9x = 9x + -9x

Combine like terms: 12x + -9x = 3x
-30 + 3x = 9x + -9x

Combine like terms: 9x + -9x = 0
-30 + 3x = 0

Add '30' to each side of the equation.
-30 + 30 + 3x = 0 + 30

Combine like terms: -30 + 30 = 0
0 + 3x = 0 + 30
3x = 0 + 30

Combine like terms: 0 + 30 = 30
3x = 30

Divide each side by '3'.
x = 10

Simplifying
x = 10

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