8+x+2x=90

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Solution for 8+x+2x=90 equation: 


Simplifying
8 + x + 2x = 90

Combine like terms: x + 2x = 3x
8 + 3x = 90

Solving
8 + 3x = 90

Solving for variable 'x'.

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

Add '-8' to each side of the equation.
8 + -8 + 3x = 90 + -8

Combine like terms: 8 + -8 = 0
0 + 3x = 90 + -8
3x = 90 + -8

Combine like terms: 90 + -8 = 82
3x = 82

Divide each side by '3'.
x = 27.33333333

Simplifying
x = 27.33333333

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