18=3x-12x

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Solution for 18=3x-12x equation:


Simplifying
18 = 3x + -12x

Combine like terms: 3x + -12x = -9x
18 = -9x

Solving
18 = -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.
18 + 9x = -9x + 9x

Combine like terms: -9x + 9x = 0
18 + 9x = 0

Add '-18' to each side of the equation.
18 + -18 + 9x = 0 + -18

Combine like terms: 18 + -18 = 0
0 + 9x = 0 + -18
9x = 0 + -18

Combine like terms: 0 + -18 = -18
9x = -18

Divide each side by '9'.
x = -2

Simplifying
x = -2

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