6x-21=-39

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Solution for 6x-21=-39 equation: 


Simplifying
6x + -21 = -39

Reorder the terms:
-21 + 6x = -39

Solving
-21 + 6x = -39

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 + 6x = -39 + 21

Combine like terms: -21 + 21 = 0
0 + 6x = -39 + 21
6x = -39 + 21

Combine like terms: -39 + 21 = -18
6x = -18

Divide each side by '6'.
x = -3

Simplifying
x = -3

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