12x+8=-9x-55

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Solution for 12x+8=-9x-55 equation:


Simplifying
12x + 8 = -9x + -55

Reorder the terms:
8 + 12x = -9x + -55

Reorder the terms:
8 + 12x = -55 + -9x

Solving
8 + 12x = -55 + -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.
8 + 12x + 9x = -55 + -9x + 9x

Combine like terms: 12x + 9x = 21x
8 + 21x = -55 + -9x + 9x

Combine like terms: -9x + 9x = 0
8 + 21x = -55 + 0
8 + 21x = -55

Add '-8' to each side of the equation.
8 + -8 + 21x = -55 + -8

Combine like terms: 8 + -8 = 0
0 + 21x = -55 + -8
21x = -55 + -8

Combine like terms: -55 + -8 = -63
21x = -63

Divide each side by '21'.
x = -3

Simplifying
x = -3

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