9x+80=x-80

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Solution for 9x+80=x-80 equation:


Simplifying
9x + 80 = x + -80

Reorder the terms:
80 + 9x = x + -80

Reorder the terms:
80 + 9x = -80 + x

Solving
80 + 9x = -80 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
80 + 9x + -1x = -80 + x + -1x

Combine like terms: 9x + -1x = 8x
80 + 8x = -80 + x + -1x

Combine like terms: x + -1x = 0
80 + 8x = -80 + 0
80 + 8x = -80

Add '-80' to each side of the equation.
80 + -80 + 8x = -80 + -80

Combine like terms: 80 + -80 = 0
0 + 8x = -80 + -80
8x = -80 + -80

Combine like terms: -80 + -80 = -160
8x = -160

Divide each side by '8'.
x = -20

Simplifying
x = -20

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