3x-12=9(x+2)

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Solution for 3x-12=9(x+2) equation:


Simplifying
3x + -12 = 9(x + 2)

Reorder the terms:
-12 + 3x = 9(x + 2)

Reorder the terms:
-12 + 3x = 9(2 + x)
-12 + 3x = (2 * 9 + x * 9)
-12 + 3x = (18 + 9x)

Solving
-12 + 3x = 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.
-12 + 3x + -9x = 18 + 9x + -9x

Combine like terms: 3x + -9x = -6x
-12 + -6x = 18 + 9x + -9x

Combine like terms: 9x + -9x = 0
-12 + -6x = 18 + 0
-12 + -6x = 18

Add '12' to each side of the equation.
-12 + 12 + -6x = 18 + 12

Combine like terms: -12 + 12 = 0
0 + -6x = 18 + 12
-6x = 18 + 12

Combine like terms: 18 + 12 = 30
-6x = 30

Divide each side by '-6'.
x = -5

Simplifying
x = -5

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