(x+20)+(x+40)=180

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Solution for (x+20)+(x+40)=180 equation: 


Simplifying
(x + 20) + (x + 40) = 180

Reorder the terms:
(20 + x) + (x + 40) = 180

Remove parenthesis around (20 + x)
20 + x + (x + 40) = 180

Reorder the terms:
20 + x + (40 + x) = 180

Remove parenthesis around (40 + x)
20 + x + 40 + x = 180

Reorder the terms:
20 + 40 + x + x = 180

Combine like terms: 20 + 40 = 60
60 + x + x = 180

Combine like terms: x + x = 2x
60 + 2x = 180

Solving
60 + 2x = 180

Solving for variable 'x'.

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

Add '-60' to each side of the equation.
60 + -60 + 2x = 180 + -60

Combine like terms: 60 + -60 = 0
0 + 2x = 180 + -60
2x = 180 + -60

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

Divide each side by '2'.
x = 60

Simplifying
x = 60

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