Answer:
f = 4 e = -2
Step-by-step explanation:
e - 2f = -10
8e + 4f = 0
Solve by substitution
8e + 4f = 0
8e = -4f
e = -0.5f
Substitute into e - 2f = -10
-0.5f - 2f = -10
-2.5f = -10
2.5f = 10
f = 4
Substitute into 8e + 4f = 0
8e + 16 = 0
8e = -16
e = -2
Answer:
e=-2, f=4. (-2, 4).
Step-by-step explanation:
e-2f=-10
8e+4f=0
-------------
e=-10+2f
e=2f-10
8(2f-10)+4f=0
16f-80+4f=0
20f=0+80
20f=80
f=80/20
f=4
e-2(4)=-10
e-8=-10
e=-10+8
e=-2
