9=a/20+10

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Solution for 9=a/20+10 equation: 



9=a/20+10

We move all terms to the left:

9-(a/20+10)=0

We get rid of parentheses

-a/20-10+9=0

We multiply all the terms by the denominator


-a-10*20+9*20=0

We add all the numbers together, and all the variables

-1a-20=0

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

-a=20

a=20/-1

a=-20

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