5-a=2a+20

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Solution for 5-a=2a+20 equation: 



5-a=2a+20

We move all terms to the left:

5-a-(2a+20)=0

We add all the numbers together, and all the variables

-1a-(2a+20)+5=0

We get rid of parentheses

-1a-2a-20+5=0

We add all the numbers together, and all the variables

-3a-15=0

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

-3a=15

a=15/-3

a=-5

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