20a-1=3.5a-3

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Solution for 20a-1=3.5a-3 equation: 



20a-1=3.5a-3

We move all terms to the left:

20a-1-(3.5a-3)=0

We get rid of parentheses

20a-3.5a+3-1=0

We add all the numbers together, and all the variables

16.5a+2=0

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

16.5a=-2

a=-2/16.5

a=-1/8.25

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