4=2.5x+7.5

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Solution for 4=2.5x+7.5 equation: 



4=2.5x+7.5

We move all terms to the left:

4-(2.5x+7.5)=0

We get rid of parentheses

-2.5x-7.5+4=0

We add all the numbers together, and all the variables

-2.5x-3.5=0

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

-2.5x=3.5

x=3.5/-2.5

x=-1+1/2.5

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