Question 232644
Hello, 
To solve for y in the equation x + y = -3, we need to get y by itself on one side of the equal sign. Here's how you do it. 

          You subtract x on both sides of the equal sign. (remember,  
                    whatever you do on one side of the equal sign you must do on 
                    one the other side.)
x - x + y = -3 -x   (You see, x - x is zero therefore leaves y all alone.) 

y = -3 - x          (Here's your answer)
RJ Toftness
www.math-unlock.com