QS would be 42. So the way i did it was I:
8x-51=3x-6
x=9
Plugged into both equations of QR and RS to then get the answer of 42
64 miles cuz he would take the shorter way
Answer:
−4(x−2)+5x
Distribute:
=(−4)(x)+(−4)(−2)+5x
=−4x+8+5x
Combine Like Terms:
=(−4x+5x)+(8)
=x+8
