Answer:
There is no question stated here so I will improvise.
Step-by-step explanation: Time Stamp ( 6 9 10 16)
5x+2y=9
5x+10y=75 substract these two equations
0x - 8y = -66
-8y = -66
y = -66/-8
y = 8.25
5x+2y=9
5x+2(8.25)=9
5x = 9 - 16.5
x = -7.5 / 5
x = -1.5
