12-57-6x=21

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Solution for 12-57-6x=21 equation: 


Simplifying
12 + -57 + -6x = 21

Combine like terms: 12 + -57 = -45
-45 + -6x = 21

Solving
-45 + -6x = 21

Solving for variable 'x'.

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

Add '45' to each side of the equation.
-45 + 45 + -6x = 21 + 45

Combine like terms: -45 + 45 = 0
0 + -6x = 21 + 45
-6x = 21 + 45

Combine like terms: 21 + 45 = 66
-6x = 66

Divide each side by '-6'.
x = -11

Simplifying
x = -11

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