7.5=4x+30

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Solution for 7.5=4x+30 equation: 



7.5=4x+30

We move all terms to the left:

7.5-(4x+30)=0

We get rid of parentheses

-4x-30+7.5=0

We add all the numbers together, and all the variables

-4x-22.5=0

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

-4x=22.5

x=22.5/-4

x=-5+1/1.6

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