-107-9x=7x+21

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Solution for -107-9x=7x+21 equation: 


Simplifying
-107 + -9x = 7x + 21

Reorder the terms:
-107 + -9x = 21 + 7x

Solving
-107 + -9x = 21 + 7x

Solving for variable 'x'.

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

Add '-7x' to each side of the equation.
-107 + -9x + -7x = 21 + 7x + -7x

Combine like terms: -9x + -7x = -16x
-107 + -16x = 21 + 7x + -7x

Combine like terms: 7x + -7x = 0
-107 + -16x = 21 + 0
-107 + -16x = 21

Add '107' to each side of the equation.
-107 + 107 + -16x = 21 + 107

Combine like terms: -107 + 107 = 0
0 + -16x = 21 + 107
-16x = 21 + 107

Combine like terms: 21 + 107 = 128
-16x = 128

Divide each side by '-16'.
x = -8

Simplifying
x = -8

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