-12x-21=63

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Solution for -12x-21=63 equation: 


Simplifying
-12x + -21 = 63

Reorder the terms:
-21 + -12x = 63

Solving
-21 + -12x = 63

Solving for variable 'x'.

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

Add '21' to each side of the equation.
-21 + 21 + -12x = 63 + 21

Combine like terms: -21 + 21 = 0
0 + -12x = 63 + 21
-12x = 63 + 21

Combine like terms: 63 + 21 = 84
-12x = 84

Divide each side by '-12'.
x = -7

Simplifying
x = -7

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