X+3X+(X+80)=180

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Solution for X+3X+(X+80)=180 equation:


Simplifying
X + 3X + (X + 80) = 180

Reorder the terms:
X + 3X + (80 + X) = 180

Remove parenthesis around (80 + X)
X + 3X + 80 + X = 180

Reorder the terms:
80 + X + 3X + X = 180

Combine like terms: X + 3X = 4X
80 + 4X + X = 180

Combine like terms: 4X + X = 5X
80 + 5X = 180

Solving
80 + 5X = 180

Solving for variable 'X'.

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

Add '-80' to each side of the equation.
80 + -80 + 5X = 180 + -80

Combine like terms: 80 + -80 = 0
0 + 5X = 180 + -80
5X = 180 + -80

Combine like terms: 180 + -80 = 100
5X = 100

Divide each side by '5'.
X = 20

Simplifying
X = 20

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