x+2x+x-20=80

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Solution for x+2x+x-20=80 equation:


Simplifying
x + 2x + x + -20 = 80

Reorder the terms:
-20 + x + 2x + x = 80

Combine like terms: x + 2x = 3x
-20 + 3x + x = 80

Combine like terms: 3x + x = 4x
-20 + 4x = 80

Solving
-20 + 4x = 80

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 + 4x = 80 + 20

Combine like terms: -20 + 20 = 0
0 + 4x = 80 + 20
4x = 80 + 20

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

Divide each side by '4'.
x = 25

Simplifying
x = 25

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