120=(2x+10)+(x+15)

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Solution for 120=(2x+10)+(x+15) equation:


Simplifying
120 = (2x + 10) + (x + 15)

Reorder the terms:
120 = (10 + 2x) + (x + 15)

Remove parenthesis around (10 + 2x)
120 = 10 + 2x + (x + 15)

Reorder the terms:
120 = 10 + 2x + (15 + x)

Remove parenthesis around (15 + x)
120 = 10 + 2x + 15 + x

Reorder the terms:
120 = 10 + 15 + 2x + x

Combine like terms: 10 + 15 = 25
120 = 25 + 2x + x

Combine like terms: 2x + x = 3x
120 = 25 + 3x

Solving
120 = 25 + 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.
120 + -3x = 25 + 3x + -3x

Combine like terms: 3x + -3x = 0
120 + -3x = 25 + 0
120 + -3x = 25

Add '-120' to each side of the equation.
120 + -120 + -3x = 25 + -120

Combine like terms: 120 + -120 = 0
0 + -3x = 25 + -120
-3x = 25 + -120

Combine like terms: 25 + -120 = -95
-3x = -95

Divide each side by '-3'.
x = 31.66666667

Simplifying
x = 31.66666667

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