3a+4=7+a

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Solution for 3a+4=7+a equation: 



3a+4=7+a

We move all terms to the left:

3a+4-(7+a)=0

We add all the numbers together, and all the variables

3a-(a+7)+4=0

We get rid of parentheses

3a-a-7+4=0

We add all the numbers together, and all the variables

2a-3=0

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

2a=3

a=3/2

a=1+1/2

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