(x+20)+(3x+20)+(3x-20)=180

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Solution for (x+20)+(3x+20)+(3x-20)=180 equation: 


Simplifying
(x + 20) + (3x + 20) + (3x + -20) = 180

Reorder the terms:
(20 + x) + (3x + 20) + (3x + -20) = 180

Remove parenthesis around (20 + x)
20 + x + (3x + 20) + (3x + -20) = 180

Reorder the terms:
20 + x + (20 + 3x) + (3x + -20) = 180

Remove parenthesis around (20 + 3x)
20 + x + 20 + 3x + (3x + -20) = 180

Reorder the terms:
20 + x + 20 + 3x + (-20 + 3x) = 180

Remove parenthesis around (-20 + 3x)
20 + x + 20 + 3x + -20 + 3x = 180

Reorder the terms:
20 + 20 + -20 + x + 3x + 3x = 180

Combine like terms: 20 + 20 = 40
40 + -20 + x + 3x + 3x = 180

Combine like terms: 40 + -20 = 20
20 + x + 3x + 3x = 180

Combine like terms: x + 3x = 4x
20 + 4x + 3x = 180

Combine like terms: 4x + 3x = 7x
20 + 7x = 180

Solving
20 + 7x = 180

Solving for variable 'x'.

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

Add '-20' to each side of the equation.
20 + -20 + 7x = 180 + -20

Combine like terms: 20 + -20 = 0
0 + 7x = 180 + -20
7x = 180 + -20

Combine like terms: 180 + -20 = 160
7x = 160

Divide each side by '7'.
x = 22.85714286

Simplifying
x = 22.85714286

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