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

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


Simplifying
-1x + -12 = 3(2x + 3)

Reorder the terms:
-12 + -1x = 3(2x + 3)

Reorder the terms:
-12 + -1x = 3(3 + 2x)
-12 + -1x = (3 * 3 + 2x * 3)
-12 + -1x = (9 + 6x)

Solving
-12 + -1x = 9 + 6x

Solving for variable 'x'.

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

Add '-6x' to each side of the equation.
-12 + -1x + -6x = 9 + 6x + -6x

Combine like terms: -1x + -6x = -7x
-12 + -7x = 9 + 6x + -6x

Combine like terms: 6x + -6x = 0
-12 + -7x = 9 + 0
-12 + -7x = 9

Add '12' to each side of the equation.
-12 + 12 + -7x = 9 + 12

Combine like terms: -12 + 12 = 0
0 + -7x = 9 + 12
-7x = 9 + 12

Combine like terms: 9 + 12 = 21
-7x = 21

Divide each side by '-7'.
x = -3

Simplifying
x = -3

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