Question 255233
y+x=-8 


Since x does not contain the variable to solve for, move it to the right-hand side of the equation by subtracting x from both sides. 

y=-x-8 


To find the slope and y intercept, use the y=mx+b formula where m=slope and b is the y intercept. 

y=mx+b 


Using the y=mx+b formula, m=-1 and b=-8. 

m=-1, b=-8