Answer:
4.) x=-3 and y=4
Step-by-step explanation:
[x+4] + [-9x] = [28]
First plug in x into the equation
[-3+4] + [-9(-3)] = [28]
[1] + [27] = [28]
1+27=28 (True)
Next, plug in y into the equation
[y^2+1] + [-17] = [0]
[(4)(4)+1] + [-17] = [0]
[16+1] + [-17] = [0]
[17] + [-17] =[0]
17 + -17=0 (True)
The Answer is D- X = -3 and Y= 4
