Question

x+25%x=2500 x-12%=4.4 45%x+15%=36 120%x-x=56 48%x-12%x=72 【解

Answer 1

x+25%x=2500

1.25x=2500

x=2000

x-12%x=4.4

0.88x=4.4

x=5

45%x+15%x=36

0.6x=36

x=60

120%x-x=56

0.2x=56

x=280

48%x-12%x=72

0.36x=72

x=200