Question

妈妈用144元购买枕头和毛巾,枕头24元,毛巾6元,各买多少?

Answer 1

设购买枕头X个.毛巾Y条.

24X + 6Y = 144

4X + Y = 24

所以.

X=1 X=2 X=3 X=4 X=5 X=6

Y=20 Y=16 Y=12 Y=8 Y=4 Y=0