9x+30=5x+42

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Solution for 9x+30=5x+42 equation: 



9x+30=5x+42

We move all terms to the left:

9x+30-(5x+42)=0

We get rid of parentheses

9x-5x-42+30=0

We add all the numbers together, and all the variables

4x-12=0

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

4x=12

x=12/4

x=3

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