a+4a-9=8a+6

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Solution for a+4a-9=8a+6 equation: 



a+4a-9=8a+6

We move all terms to the left:

a+4a-9-(8a+6)=0

We add all the numbers together, and all the variables

5a-(8a+6)-9=0

We get rid of parentheses

5a-8a-6-9=0

We add all the numbers together, and all the variables

-3a-15=0

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

-3a=15

a=15/-3

a=-5

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