180-3x=90

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Solution for 180-3x=90 equation: 


Simplifying
180 + -3x = 90

Solving
180 + -3x = 90

Solving for variable 'x'.

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

Add '-180' to each side of the equation.
180 + -180 + -3x = 90 + -180

Combine like terms: 180 + -180 = 0
0 + -3x = 90 + -180
-3x = 90 + -180

Combine like terms: 90 + -180 = -90
-3x = -90

Divide each side by '-3'.
x = 30

Simplifying
x = 30

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