9+4a=4-17a

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Solution for 9+4a=4-17a equation: 



9+4a=4-17a

We move all terms to the left:

9+4a-(4-17a)=0

We add all the numbers together, and all the variables

4a-(-17a+4)+9=0

We get rid of parentheses

4a+17a-4+9=0

We add all the numbers together, and all the variables

21a+5=0

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

21a=-5

a=-5/21

a=-5/21

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