X+(x+15)+(x+105)=180

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Solution for X+(x+15)+(x+105)=180 equation: 


Simplifying
X + (x + 15) + (x + 105) = 180

Reorder the terms:
X + (15 + x) + (x + 105) = 180

Remove parenthesis around (15 + x)
X + 15 + x + (x + 105) = 180

Reorder the terms:
X + 15 + x + (105 + x) = 180

Remove parenthesis around (105 + x)
X + 15 + x + 105 + x = 180

Reorder the terms:
15 + 105 + X + x + x = 180

Combine like terms: 15 + 105 = 120
120 + X + x + x = 180

Combine like terms: x + x = 2x
120 + X + 2x = 180

Solving
120 + X + 2x = 180

Solving for variable 'X'.

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

Add '-120' to each side of the equation.
120 + X + -120 + 2x = 180 + -120

Reorder the terms:
120 + -120 + X + 2x = 180 + -120

Combine like terms: 120 + -120 = 0
0 + X + 2x = 180 + -120
X + 2x = 180 + -120

Combine like terms: 180 + -120 = 60
X + 2x = 60

Add '-2x' to each side of the equation.
X + 2x + -2x = 60 + -2x

Combine like terms: 2x + -2x = 0
X + 0 = 60 + -2x
X = 60 + -2x

Simplifying
X = 60 + -2x

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