4a+10a-a+2a-5=85-15a

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Solution for 4a+10a-a+2a-5=85-15a equation: 



4a+10a-a+2a-5=85-15a

We move all terms to the left:

4a+10a-a+2a-5-(85-15a)=0

We add all the numbers together, and all the variables

4a+10a-a+2a-(-15a+85)-5=0

We add all the numbers together, and all the variables

15a-(-15a+85)-5=0

We get rid of parentheses

15a+15a-85-5=0

We add all the numbers together, and all the variables

30a-90=0

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

30a=90

a=90/30

a=3

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