180=90+3x+(60-x)

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Solution for 180=90+3x+(60-x) equation:


Simplifying
180 = 90 + 3x + (60 + -1x)

Remove parenthesis around (60 + -1x)
180 = 90 + 3x + 60 + -1x

Reorder the terms:
180 = 90 + 60 + 3x + -1x

Combine like terms: 90 + 60 = 150
180 = 150 + 3x + -1x

Combine like terms: 3x + -1x = 2x
180 = 150 + 2x

Solving
180 = 150 + 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.
180 + -2x = 150 + 2x + -2x

Combine like terms: 2x + -2x = 0
180 + -2x = 150 + 0
180 + -2x = 150

Add '-180' to each side of the equation.
180 + -180 + -2x = 150 + -180

Combine like terms: 180 + -180 = 0
0 + -2x = 150 + -180
-2x = 150 + -180

Combine like terms: 150 + -180 = -30
-2x = -30

Divide each side by '-2'.
x = 15

Simplifying
x = 15

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