6x-3x=42-9

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Solution for 6x-3x=42-9 equation: 


Simplifying
6x + -3x = 42 + -9

Combine like terms: 6x + -3x = 3x
3x = 42 + -9

Combine like terms: 42 + -9 = 33
3x = 33

Solving
3x = 33

Solving for variable 'x'.

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

Divide each side by '3'.
x = 11

Simplifying
x = 11

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