20a+2a-7a=5.5a+15a+5a

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Solution for 20a+2a-7a=5.5a+15a+5a equation: 



20a+2a-7a=5.5a+15a+5a

We move all terms to the left:

20a+2a-7a-(5.5a+15a+5a)=0

We add all the numbers together, and all the variables

20a+2a-7a-(+25.5a)=0

We add all the numbers together, and all the variables

15a-(+25.5a)=0

We get rid of parentheses

15a-25.5a=0

We add all the numbers together, and all the variables

-10.5a=0

a=0/-10.5

a=0

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