5a-(5-a)=3a-20

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Solution for 5a-(5-a)=3a-20 equation: 



5a-(5-a)=3a-20

We move all terms to the left:

5a-(5-a)-(3a-20)=0

We add all the numbers together, and all the variables

5a-(-1a+5)-(3a-20)=0

We get rid of parentheses

5a+1a-3a-5+20=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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