12x-6-18-6x=-21

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Solution for 12x-6-18-6x=-21 equation:


Simplifying
12x + -6 + -18 + -6x = -21

Reorder the terms:
-6 + -18 + 12x + -6x = -21

Combine like terms: -6 + -18 = -24
-24 + 12x + -6x = -21

Combine like terms: 12x + -6x = 6x
-24 + 6x = -21

Solving
-24 + 6x = -21

Solving for variable 'x'.

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

Add '24' to each side of the equation.
-24 + 24 + 6x = -21 + 24

Combine like terms: -24 + 24 = 0
0 + 6x = -21 + 24
6x = -21 + 24

Combine like terms: -21 + 24 = 3
6x = 3

Divide each side by '6'.
x = 0.5

Simplifying
x = 0.5

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