2x+x=x+42

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


Simplifying
2x + x = x + 42

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

Reorder the terms:
3x = 42 + x

Solving
3x = 42 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
3x + -1x = 42 + x + -1x

Combine like terms: 3x + -1x = 2x
2x = 42 + x + -1x

Combine like terms: x + -1x = 0
2x = 42 + 0
2x = 42

Divide each side by '2'.
x = 21

Simplifying
x = 21

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