5a-12=20-3a

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Solution for 5a-12=20-3a equation: 



5a-12=20-3a

We move all terms to the left:

5a-12-(20-3a)=0

We add all the numbers together, and all the variables

5a-(-3a+20)-12=0

We get rid of parentheses

5a+3a-20-12=0

We add all the numbers together, and all the variables

8a-32=0

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

8a=32

a=32/8

a=4

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