180=(10x-20)+(x+15)+(x+5)

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Solution for 180=(10x-20)+(x+15)+(x+5) equation:


Simplifying
180 = (10x + -20) + (x + 15) + (x + 5)

Reorder the terms:
180 = (-20 + 10x) + (x + 15) + (x + 5)

Remove parenthesis around (-20 + 10x)
180 = -20 + 10x + (x + 15) + (x + 5)

Reorder the terms:
180 = -20 + 10x + (15 + x) + (x + 5)

Remove parenthesis around (15 + x)
180 = -20 + 10x + 15 + x + (x + 5)

Reorder the terms:
180 = -20 + 10x + 15 + x + (5 + x)

Remove parenthesis around (5 + x)
180 = -20 + 10x + 15 + x + 5 + x

Reorder the terms:
180 = -20 + 15 + 5 + 10x + x + x

Combine like terms: -20 + 15 = -5
180 = -5 + 5 + 10x + x + x

Combine like terms: -5 + 5 = 0
180 = 0 + 10x + x + x
180 = 10x + x + x

Combine like terms: 10x + x = 11x
180 = 11x + x

Combine like terms: 11x + x = 12x
180 = 12x

Solving
180 = 12x

Solving for variable 'x'.

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

Add '-12x' to each side of the equation.
180 + -12x = 12x + -12x

Combine like terms: 12x + -12x = 0
180 + -12x = 0

Add '-180' to each side of the equation.
180 + -180 + -12x = 0 + -180

Combine like terms: 180 + -180 = 0
0 + -12x = 0 + -180
-12x = 0 + -180

Combine like terms: 0 + -180 = -180
-12x = -180

Divide each side by '-12'.
x = 15

Simplifying
x = 15

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