4x-12=-2x-21

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Solution for 4x-12=-2x-21 equation:


Simplifying
4x + -12 = -2x + -21

Reorder the terms:
-12 + 4x = -2x + -21

Reorder the terms:
-12 + 4x = -21 + -2x

Solving
-12 + 4x = -21 + -2x

Solving for variable 'x'.

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

Add '2x' to each side of the equation.
-12 + 4x + 2x = -21 + -2x + 2x

Combine like terms: 4x + 2x = 6x
-12 + 6x = -21 + -2x + 2x

Combine like terms: -2x + 2x = 0
-12 + 6x = -21 + 0
-12 + 6x = -21

Add '12' to each side of the equation.
-12 + 12 + 6x = -21 + 12

Combine like terms: -12 + 12 = 0
0 + 6x = -21 + 12
6x = -21 + 12

Combine like terms: -21 + 12 = -9
6x = -9

Divide each side by '6'.
x = -1.5

Simplifying
x = -1.5

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