-51+12x-6x=21

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Solution for -51+12x-6x=21 equation: 


Simplifying
-51 + 12x + -6x = 21

Combine like terms: 12x + -6x = 6x
-51 + 6x = 21

Solving
-51 + 6x = 21

Solving for variable 'x'.

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

Add '51' to each side of the equation.
-51 + 51 + 6x = 21 + 51

Combine like terms: -51 + 51 = 0
0 + 6x = 21 + 51
6x = 21 + 51

Combine like terms: 21 + 51 = 72
6x = 72

Divide each side by '6'.
x = 12

Simplifying
x = 12

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