Let units cancel out that you do not need for you answer...
50L(72km/6L)=600km
Answer:

Step-by-step explanation:

Rewrite equations
Y/7=15/3 Y/7=5 Now multiply out 7 Y=5×7 Y=35 To check
35/7=15/3
5=5 it checks
You can solve a system of three equations by multiplying each equation by a number that allows you to add or suvtract the same equation together by eliminating the x or y variable
So what exactly is going on here?