3=7+a/2

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Solution for 3=7+a/2 equation: 



3=7+a/2

We move all terms to the left:

3-(7+a/2)=0

We add all the numbers together, and all the variables

-(a/2+7)+3=0

We get rid of parentheses

-a/2-7+3=0

We multiply all the terms by the denominator


-a-7*2+3*2=0

We add all the numbers together, and all the variables

-1a-8=0

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

-a=8

a=8/-1

a=-8

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