x+80+(4x-100)=180

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Solution for x+80+(4x-100)=180 equation: 


Simplifying
x + 80 + (4x + -100) = 180

Reorder the terms:
x + 80 + (-100 + 4x) = 180

Remove parenthesis around (-100 + 4x)
x + 80 + -100 + 4x = 180

Reorder the terms:
80 + -100 + x + 4x = 180

Combine like terms: 80 + -100 = -20
-20 + x + 4x = 180

Combine like terms: x + 4x = 5x
-20 + 5x = 180

Solving
-20 + 5x = 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 + 5x = 180 + 20

Combine like terms: -20 + 20 = 0
0 + 5x = 180 + 20
5x = 180 + 20

Combine like terms: 180 + 20 = 200
5x = 200

Divide each side by '5'.
x = 40

Simplifying
x = 40

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