80-x=9-2x

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Solution for 80-x=9-2x equation:


Simplifying
80 + -1x = 9 + -2x

Solving
80 + -1x = 9 + -2x

Solving for variable 'x'.

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

Add '2x' to each side of the equation.
80 + -1x + 2x = 9 + -2x + 2x

Combine like terms: -1x + 2x = 1x
80 + 1x = 9 + -2x + 2x

Combine like terms: -2x + 2x = 0
80 + 1x = 9 + 0
80 + 1x = 9

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

Combine like terms: 80 + -80 = 0
0 + 1x = 9 + -80
1x = 9 + -80

Combine like terms: 9 + -80 = -71
1x = -71

Divide each side by '1'.
x = -71

Simplifying
x = -71

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