180=70+(x+30)+(2x-10)

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Solution for 180=70+(x+30)+(2x-10) equation: 


Simplifying
180 = 70 + (x + 30) + (2x + -10)

Reorder the terms:
180 = 70 + (30 + x) + (2x + -10)

Remove parenthesis around (30 + x)
180 = 70 + 30 + x + (2x + -10)

Reorder the terms:
180 = 70 + 30 + x + (-10 + 2x)

Remove parenthesis around (-10 + 2x)
180 = 70 + 30 + x + -10 + 2x

Reorder the terms:
180 = 70 + 30 + -10 + x + 2x

Combine like terms: 70 + 30 = 100
180 = 100 + -10 + x + 2x

Combine like terms: 100 + -10 = 90
180 = 90 + x + 2x

Combine like terms: x + 2x = 3x
180 = 90 + 3x

Solving
180 = 90 + 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.
180 + -3x = 90 + 3x + -3x

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

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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