180-x+20=3*(90-x)

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Solution for 180-x+20=3*(90-x) equation:


Simplifying
180 + -1x + 20 = 3(90 + -1x)

Reorder the terms:
180 + 20 + -1x = 3(90 + -1x)

Combine like terms: 180 + 20 = 200
200 + -1x = 3(90 + -1x)
200 + -1x = (90 * 3 + -1x * 3)
200 + -1x = (270 + -3x)

Solving
200 + -1x = 270 + -3x

Solving for variable 'x'.

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

Add '3x' to each side of the equation.
200 + -1x + 3x = 270 + -3x + 3x

Combine like terms: -1x + 3x = 2x
200 + 2x = 270 + -3x + 3x

Combine like terms: -3x + 3x = 0
200 + 2x = 270 + 0
200 + 2x = 270

Add '-200' to each side of the equation.
200 + -200 + 2x = 270 + -200

Combine like terms: 200 + -200 = 0
0 + 2x = 270 + -200
2x = 270 + -200

Combine like terms: 270 + -200 = 70
2x = 70

Divide each side by '2'.
x = 35

Simplifying
x = 35

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