-89=-80-x

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Solution for -89=-80-x equation:


Simplifying
-89 = -80 + -1x

Solving
-89 = -80 + -1x

Solving for variable 'x'.

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

Add 'x' to each side of the equation.
-89 + x = -80 + -1x + x

Combine like terms: -1x + x = 0
-89 + x = -80 + 0
-89 + x = -80

Add '89' to each side of the equation.
-89 + 89 + x = -80 + 89

Combine like terms: -89 + 89 = 0
0 + x = -80 + 89
x = -80 + 89

Combine like terms: -80 + 89 = 9
x = 9

Simplifying
x = 9

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