7x-42=3x+6

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Solution for 7x-42=3x+6 equation: 



7x-42=3x+6

We move all terms to the left:

7x-42-(3x+6)=0

We get rid of parentheses

7x-3x-6-42=0

We add all the numbers together, and all the variables

4x-48=0

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

4x=48

x=48/4

x=12

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