3=-1+b/2

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Solution for 3=-1+b/2 equation: 



3=-1+b/2

We move all terms to the left:

3-(-1+b/2)=0

We add all the numbers together, and all the variables

-(b/2-1)+3=0

We get rid of parentheses

-b/2+1+3=0

We multiply all the terms by the denominator


-b+1*2+3*2=0

We add all the numbers together, and all the variables

-1b+8=0

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

-b=-8

b=-8/-1

b=+8

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