x+2x+6=84

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Solution for x+2x+6=84 equation: 


Simplifying
x + 2x + 6 = 84

Reorder the terms:
6 + x + 2x = 84

Combine like terms: x + 2x = 3x
6 + 3x = 84

Solving
6 + 3x = 84

Solving for variable 'x'.

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

Add '-6' to each side of the equation.
6 + -6 + 3x = 84 + -6

Combine like terms: 6 + -6 = 0
0 + 3x = 84 + -6
3x = 84 + -6

Combine like terms: 84 + -6 = 78
3x = 78

Divide each side by '3'.
x = 26

Simplifying
x = 26

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