The first equation tells you that writing "y" is the same as writing "4x-1".
So, in the second equation, you can substitute "y" with "4x-1":
![y=2x-5\mapsto 4x-1=2x-5 \iff 2x=-4 \iff x=-2](https://tex.z-dn.net/?f=y%3D2x-5%5Cmapsto%204x-1%3D2x-5%20%5Ciff%202x%3D-4%20%5Ciff%20x%3D-2)
Now that we have the value for x, we can deduce the value of y:
![y=2x-5 = 2(-2)-5 = -4-5 = -9](https://tex.z-dn.net/?f=y%3D2x-5%20%3D%202%28-2%29-5%20%3D%20-4-5%20%3D%20-9)
Answer:
try 5
Step-by-step explanation:
Answer:
180%
Step-by-step explanation:
Ignore the fact that 125 towels were purchased. Just use the formula
markup=profit/cost*100
Answer:
x/3-6
Step-by-step explanation:
The number represents x and since it's a quotient you divide by 3 and since it says 6 less that you subtract by 6