3=2(2a)-1

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Solution for 3=2(2a)-1 equation: 



3=2(2a)-1

We move all terms to the left:

3-(2(2a)-1)=0

We get rid of parentheses

-22a+1+3=0

We add all the numbers together, and all the variables

-22a+4=0

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

-22a=-4

a=-4/-22

a=2/11

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