4x+7y=47 /*4 ------>16x + 28y=188
5x-4y=-5 /*7 -------->35x-28y=-35
16x + 28y=188, add this two equations
35x-28y=-35
16x + 28y+35x-28y=188-35
16x +35x=188-35
51x =153m
x=3
5x-4y=-5
5*3-4y=-5
15-4y=-5
4y=15+5
4y=20
y=5
Answer (3,5), B
Answer: 
Step-by-step explanation:
Setting the equations equal to each other.

Answer:
1
Step-by-step explanation:
slope = (y' - y) / (x' - x)
Slope = (5 - (-1)) / 4 - (-2))
Slope = 6 / 6 = 1
Answer:
3/2
Step-by-step explanation:
852 and because I said so