51=-21-12x

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Solution for 51=-21-12x equation:


Simplifying
51 = -21 + -12x

Solving
51 = -21 + -12x

Solving for variable 'x'.

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

Add '12x' to each side of the equation.
51 + 12x = -21 + -12x + 12x

Combine like terms: -12x + 12x = 0
51 + 12x = -21 + 0
51 + 12x = -21

Add '-51' to each side of the equation.
51 + -51 + 12x = -21 + -51

Combine like terms: 51 + -51 = 0
0 + 12x = -21 + -51
12x = -21 + -51

Combine like terms: -21 + -51 = -72
12x = -72

Divide each side by '12'.
x = -6

Simplifying
x = -6

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