171=-9x-(-99)

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Solution for 171=-9x-(-99) equation:


Simplifying
171 = -9x + -1(-99)

Multiply -1 * -99
171 = -9x + 99

Reorder the terms:
171 = 99 + -9x

Solving
171 = 99 + -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.
171 + 9x = 99 + -9x + 9x

Combine like terms: -9x + 9x = 0
171 + 9x = 99 + 0
171 + 9x = 99

Add '-171' to each side of the equation.
171 + -171 + 9x = 99 + -171

Combine like terms: 171 + -171 = 0
0 + 9x = 99 + -171
9x = 99 + -171

Combine like terms: 99 + -171 = -72
9x = -72

Divide each side by '9'.
x = -8

Simplifying
x = -8

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