Going To The Picnic
Let p = people
Let w = wagon
(1)p=(w−10)(pw+1)p=p+w−10pw−100=w−10pw−1010pw=w−10p=w10(w−10)(2)p=(w−25)(pw+3)p=p+3w−25pw−750=3w−25pw−7525pw=3w−75p=w25(3w−75)
p=w10(w−10)=w25(3w−75)w10(w−10)=w25(3w−75)25(w−10)=10(3w−75)5(w−10)=2(3w−75)5w−50=6w−150w=100
p=w10(w−10)=10010(100−10)=10×90p=900