3=y-2(-1-y)

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

3=y-2(-1-y)

We move all terms to the left:

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

We add all the numbers together, and all the variables

-(y-2(-1y-1))+3=0


We calculate terms in parentheses: -(y-2(-1y-1)), so:

y-2(-1y-1)

We multiply parentheses

y+2y+2

We add all the numbers together, and all the variables

3y+2

Back to the equation:

-(3y+2)


We get rid of parentheses

-3y-2+3=0

We add all the numbers together, and all the variables

-3y+1=0

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

-3y=-1

y=-1/-3

y=1/3