2x+x-9=3

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


Simplifying
2x + x + -9 = 3

Reorder the terms:
-9 + 2x + x = 3

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

Solving
-9 + 3x = 3

Solving for variable 'x'.

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

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

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

Combine like terms: 3 + 9 = 12
3x = 12

Divide each side by '3'.
x = 4

Simplifying
x = 4

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