4x+2x-12=30

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Solution for 4x+2x-12=30 equation: 



4x+2x-12=30

We move all terms to the left:

4x+2x-12-(30)=0

We add all the numbers together, and all the variables

6x-42=0

We move all terms containing x to the left, all other terms to the right

6x=42

x=42/6

x=7

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