x+2x+8=42

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Solution for x+2x+8=42 equation: 


Simplifying
x + 2x + 8 = 42

Reorder the terms:
8 + x + 2x = 42

Combine like terms: x + 2x = 3x
8 + 3x = 42

Solving
8 + 3x = 42

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 = 42 + -8

Combine like terms: 8 + -8 = 0
0 + 3x = 42 + -8
3x = 42 + -8

Combine like terms: 42 + -8 = 34
3x = 34

Divide each side by '3'.
x = 11.33333333

Simplifying
x = 11.33333333

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