x+2x=30+50

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Solution for x+2x=30+50 equation: 


Simplifying
x + 2x = 30 + 50

Combine like terms: x + 2x = 3x
3x = 30 + 50

Combine like terms: 30 + 50 = 80
3x = 80

Solving
3x = 80

Solving for variable 'x'.

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

Divide each side by '3'.
x = 26.66666667

Simplifying
x = 26.66666667

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