Solve by elimination 9x-4y=7 x-4y=-17

x=3 and y=5

Step-by-step explanation:

simply multiply one of the equations by - 1 so - 1 (x-4y=-17)

so then 9x-4y=7 plus - x+4y=17 and you eliminate the y variable to get 8x=24

so x=3 then plug it in to get y

9 (3) - 4y=7

27-4y=7

-4y=-20

so y=5