-99-9x=8x+20

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Solution for -99-9x=8x+20 equation:


Simplifying
-99 + -9x = 8x + 20

Reorder the terms:
-99 + -9x = 20 + 8x

Solving
-99 + -9x = 20 + 8x

Solving for variable 'x'.

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

Add '-8x' to each side of the equation.
-99 + -9x + -8x = 20 + 8x + -8x

Combine like terms: -9x + -8x = -17x
-99 + -17x = 20 + 8x + -8x

Combine like terms: 8x + -8x = 0
-99 + -17x = 20 + 0
-99 + -17x = 20

Add '99' to each side of the equation.
-99 + 99 + -17x = 20 + 99

Combine like terms: -99 + 99 = 0
0 + -17x = 20 + 99
-17x = 20 + 99

Combine like terms: 20 + 99 = 119
-17x = 119

Divide each side by '-17'.
x = -7

Simplifying
x = -7

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