Answer:
c.) x = 3
Step-by-step explanation:
2x - 3y = 9
x = 4 + y
Substitute the second equation into the first equation
2(4+y) - 3y = 9
Distribute
8+2y -3y =9
8-y = 9
Subtract 8 from each side
8-y-8 =9-8
-y = 1
Multiply by -1
y =-1
Now solve for x
x = 4-1
x =3
