80-x+90-2x=180

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Solution for 80-x+90-2x=180 equation:


Simplifying
80 + -1x + 90 + -2x = 180

Reorder the terms:
80 + 90 + -1x + -2x = 180

Combine like terms: 80 + 90 = 170
170 + -1x + -2x = 180

Combine like terms: -1x + -2x = -3x
170 + -3x = 180

Solving
170 + -3x = 180

Solving for variable 'x'.

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

Add '-170' to each side of the equation.
170 + -170 + -3x = 180 + -170

Combine like terms: 170 + -170 = 0
0 + -3x = 180 + -170
-3x = 180 + -170

Combine like terms: 180 + -170 = 10
-3x = 10

Divide each side by '-3'.
x = -3.333333333

Simplifying
x = -3.333333333

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