30=3x+72

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Solution for 30=3x+72 equation: 



30=3x+72

We move all terms to the left:

30-(3x+72)=0

We get rid of parentheses

-3x-72+30=0

We add all the numbers together, and all the variables

-3x-42=0

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

-3x=42

x=42/-3

x=-14

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