3=5+a/7

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Solution for 3=5+a/7 equation: 



3=5+a/7

We move all terms to the left:

3-(5+a/7)=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-5*7+3*7=0

We add all the numbers together, and all the variables

-1a-14=0

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

-a=14

a=14/-1

a=-14

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