20a+15=25-2a

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Solution for 20a+15=25-2a equation: 



20a+15=25-2a

We move all terms to the left:

20a+15-(25-2a)=0

We add all the numbers together, and all the variables

20a-(-2a+25)+15=0

We get rid of parentheses

20a+2a-25+15=0

We add all the numbers together, and all the variables

22a-10=0

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

22a=10

a=10/22

a=5/11

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