8a+a-4=3a-9

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Solution for 8a+a-4=3a-9 equation: 



8a+a-4=3a-9

We move all terms to the left:

8a+a-4-(3a-9)=0

We add all the numbers together, and all the variables

9a-(3a-9)-4=0

We get rid of parentheses

9a-3a+9-4=0

We add all the numbers together, and all the variables

6a+5=0

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

6a=-5

a=-5/6

a=-5/6

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