-81+12x=171-9x

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Solution for -81+12x=171-9x equation:


Simplifying
-81 + 12x = 171 + -9x

Solving
-81 + 12x = 171 + -9x

Solving for variable 'x'.

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

Add '9x' to each side of the equation.
-81 + 12x + 9x = 171 + -9x + 9x

Combine like terms: 12x + 9x = 21x
-81 + 21x = 171 + -9x + 9x

Combine like terms: -9x + 9x = 0
-81 + 21x = 171 + 0
-81 + 21x = 171

Add '81' to each side of the equation.
-81 + 81 + 21x = 171 + 81

Combine like terms: -81 + 81 = 0
0 + 21x = 171 + 81
21x = 171 + 81

Combine like terms: 171 + 81 = 252
21x = 252

Divide each side by '21'.
x = 12

Simplifying
x = 12

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