y = -20 + 4 If z = 3.5, then y= y=-11 liz = -1, then y (Write your answer as a de z+y=1 lfz=0 then y 21 - y=5 l z= 4 then y PLEASE DETERMINE. THE VALUE OF X

Answer/Step-by-step explanation:
If in the value of x into each given equation to find y:
✔️x = 3.5,
y = -2(3.5) + 4
y = -7 + 4
y = -3
✔️x = -1,
y = ½(-1) + 11 = -½ + 11
y = (-1 + 22)/2 = 21/2
y = 10.5
✔️x = 0
0 + y = 1
y = 1
✔️x = 4,
2(4) - y = 5
8 - y = 5
-y = 5 - 8
-y = -3
Divide both sides by -1
y = 3