15a+4a=9a-5

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Solution for 15a+4a=9a-5 equation: 



15a+4a=9a-5

We move all terms to the left:

15a+4a-(9a-5)=0

We add all the numbers together, and all the variables

19a-(9a-5)=0

We get rid of parentheses

19a-9a+5=0

We add all the numbers together, and all the variables

10a+5=0

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

10a=-5

a=-5/10

a=-1/2

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