I need to know the x and y in this equation! I keep getting decimals and I'm not supposed to!! -7x-8y=9 -4x+9=-22

You sure you're not supposed to get decimals? If you are then check if you read the question right. I got x = 31/4 and y = -253/32  as well so...

check above link.

graphically?   well, you graph them both, the solutions is where they both intersect each other, since there are two solutions, meaning they will meet twice, or namely the linear will run into the quadratic curve twice, and where they meet, those x,y coordinates are the solutions to the system.

step-by-step explanation:

for exempl this   system of equations   y = x - 3

                                                                y = 2x - 5

look   the line : y = x -3     ( red)

                            the line : y = 2x -5 ( bleus)