3=-21/2+2a

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Solution for 3=-21/2+2a equation: 



3=-21/2+2a

We move all terms to the left:

3-(-21/2+2a)=0



Domain of the equation: 2+2a)!=0

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

2a)!=-2

a!=-2/1

a!=-2

a∈R



We add all the numbers together, and all the variables

-(+2a-21/2)+3=0

We get rid of parentheses

-2a+3+21/2=0

We multiply all the terms by the denominator


-2a*2+21+3*2=0

We add all the numbers together, and all the variables

-2a*2+27=0

Wy multiply elements

-4a+27=0

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

-4a=-27

a=-27/-4

a=6+3/4

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