Question

PLEASE HELP
y = 4x-9
y=x-3
Your work using substitution

Answer 1

(4,-7)

Explanation:

y=4x-9

y+3=x

y=4(y+3)-9

y=4y+12+9

y=4y+21

y-4y=21

-3y=21

y=-7

Now use y to find x

y+3=x

-7+3=4

x=4

Answer 2

-36

-3y

Explanation:

F