3+2x+x=9

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Solution for 3+2x+x=9 equation: 


Simplifying
3 + 2x + x = 9

Combine like terms: 2x + x = 3x
3 + 3x = 9

Solving
3 + 3x = 9

Solving for variable 'x'.

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

Add '-3' to each side of the equation.
3 + -3 + 3x = 9 + -3

Combine like terms: 3 + -3 = 0
0 + 3x = 9 + -3
3x = 9 + -3

Combine like terms: 9 + -3 = 6
3x = 6

Divide each side by '3'.
x = 2

Simplifying
x = 2

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