-12-7x=9x+20

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Solution for -12-7x=9x+20 equation:


Simplifying
-12 + -7x = 9x + 20

Reorder the terms:
-12 + -7x = 20 + 9x

Solving
-12 + -7x = 20 + 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.
-12 + -7x + -9x = 20 + 9x + -9x

Combine like terms: -7x + -9x = -16x
-12 + -16x = 20 + 9x + -9x

Combine like terms: 9x + -9x = 0
-12 + -16x = 20 + 0
-12 + -16x = 20

Add '12' to each side of the equation.
-12 + 12 + -16x = 20 + 12

Combine like terms: -12 + 12 = 0
0 + -16x = 20 + 12
-16x = 20 + 12

Combine like terms: 20 + 12 = 32
-16x = 32

Divide each side by '-16'.
x = -2

Simplifying
x = -2

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