30=4x+72

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Solution for 30=4x+72 equation: 



30=4x+72

We move all terms to the left:

30-(4x+72)=0

We get rid of parentheses

-4x-72+30=0

We add all the numbers together, and all the variables

-4x-42=0

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

-4x=42

x=42/-4

x=-10+1/2

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