12a=20(2-a)

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Solution for 12a=20(2-a) equation: 



12a=20(2-a)

We move all terms to the left:

12a-(20(2-a))=0

We add all the numbers together, and all the variables

12a-(20(-1a+2))=0



We calculate terms in parentheses: -(20(-1a+2)), so:

20(-1a+2)

We multiply parentheses

-20a+40

Back to the equation:

-(-20a+40)



We get rid of parentheses

12a+20a-40=0

We add all the numbers together, and all the variables

32a-40=0

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

32a=40

a=40/32

a=1+1/4

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