9-x+1=-80

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Solution for 9-x+1=-80 equation:


Simplifying
9 + -1x + 1 = -80

Reorder the terms:
9 + 1 + -1x = -80

Combine like terms: 9 + 1 = 10
10 + -1x = -80

Solving
10 + -1x = -80

Solving for variable 'x'.

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

Add '-10' to each side of the equation.
10 + -10 + -1x = -80 + -10

Combine like terms: 10 + -10 = 0
0 + -1x = -80 + -10
-1x = -80 + -10

Combine like terms: -80 + -10 = -90
-1x = -90

Divide each side by '-1'.
x = 90

Simplifying
x = 90

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