Answer:
heres an example of substitution in a world problem. hope this helps on some other problens
Answer:
A
Y-Intercept is -2
X then Y so it would be -2,-4
Okay you have 2 sum unknow lets call them X+Y
so X+Y=33, 4X=108
Get X by it self then plug it in 4X=108
X=-Y+33
4(-y+33)= 108
-4y+132=108 Then subtract the 132
-4y=-24 Y=6 then to find X subtract 33-6=27
Y=6 X=27 if you check it works out
F^-1(x)=6+2x/5 is ur inverse