Answer:
x = 2
y = 7
Step-by-step explanation:
3x + 1 = y
10x - 4y = -8
10(2) - 4(7) = -8
20 - 28 = -8
-8 = -8
3(2) + 1 = (7)
6 + 1 = 7
7 = 7
Answer: x = 2, y = 7, (2,7) are coordinates
Step-by-step explanation:
So your going to replace "y" in the second equation, for the value of "y" described in the first.
10x-4(3x+1)= -8
10x-12x-4 = -8
10x-12x = -4
-2x = -4
x = 2
Now we solve for "y" by substituting with the value of "x" we just found. So it's...
3(2) + 1 = y
6+1=y
y = 7
The coordinates are (2,7)
