-8x-y=4
-
-8x-y=9
=
0≠9. As a result, this system has no solution. Hope it help!
Answer:
Explanation:
5 1/6 pounds of graphs are bought for $7.75, meaning 1 pound costs

And we need to compute the division above.
The first step is to convert the mixed number 5 1/6 into an improper fraction.
Now, it is true that

multiplying 5 by 6/6 gives

Answer:
(f+g)(x)=f(x)+g(x)
=(-3x-5)+(4x-2)
= -3x-5+4x-2. collect like term
= -3x+4x-5-2
= x-7. the final answer