3=a/7.5

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Solution for 3=a/7.5 equation: 



3=a/7.5

We move all terms to the left:

3-(a/7.5)=0

We add all the numbers together, and all the variables

-(+a/7.5)+3=0

We get rid of parentheses

-a/7.5+3=0

We multiply all the terms by the denominator


-a+3*7.5=0

We add all the numbers together, and all the variables

-1a+22.5=0

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

-a=-22.5

a=-22.5/-1

a=22+0.5/1

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