x-20+2x-40=90

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Solution for x-20+2x-40=90 equation:


Simplifying
x + -20 + 2x + -40 = 90

Reorder the terms:
-20 + -40 + x + 2x = 90

Combine like terms: -20 + -40 = -60
-60 + x + 2x = 90

Combine like terms: x + 2x = 3x
-60 + 3x = 90

Solving
-60 + 3x = 90

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 + 3x = 90 + 60

Combine like terms: -60 + 60 = 0
0 + 3x = 90 + 60
3x = 90 + 60

Combine like terms: 90 + 60 = 150
3x = 150

Divide each side by '3'.
x = 50

Simplifying
x = 50

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