Because 3 2/4 would be the answer when you subtract it and most teachers and/or tests want you to simplify the answer which would be 1/2 because you would divide the numerator and denominator by 2.
You have to set up a system of equations
x+y=104
3x-y=104
Sodas = 78
Hotdogs = 26
B. V=9
Multiply it out, then subtract 99 from both sides, then divide by 11
Answer:
correct
Step-by-step explanation:
Imagine a point in the top left quadrant of a graph
when you rotate it 180 degrees it will end up in the bottom right quadrant
The same will apply if you flip on the y axis and the x axis in no given order