Answer:
first we get y on one side by itself.
4x+5y=5
we'll move x to the other side.
4x-4x+5y=5-4x
simplify.
5y=5-4x
now we get rid of the coefficient on y.
5y/5=(5-4x)/5
simplify.
y=5/5-4x/5
y=1- 
The answer is 
1-0
—
0-(-7)
Do that, should get you the y:
It's 8. I hope that helps. : )
Answer:
.5 = 50%
Step-by-step explanation:
Finding f(1):
f(1)=1^2+1
=2
finding 2f(1):
2f(1)=2*2
=4
finding g(4) first:
g(4)=3*4+1
=13
finding 3g(4):
3g(4)=13*3
=39
now 2f(1)+3g(4)
=4+39
=43