4a-5-a=3+a-7

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Solution for 4a-5-a=3+a-7 equation: 



4a-5-a=3+a-7

We move all terms to the left:

4a-5-a-(3+a-7)=0

We add all the numbers together, and all the variables

4a-a-(a-4)-5=0

We add all the numbers together, and all the variables

3a-(a-4)-5=0

We get rid of parentheses

3a-a+4-5=0

We add all the numbers together, and all the variables

2a-1=0

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

2a=1

a=1/2

a=1/2

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