Question

解方程（四题,20%x+37=86x--30%x=22.4119--120%x=103.475%--96=54

Answer 1

20%x+37=86

20%x=86-37

20%x=49

x=245

x--30%x=22.4

0.7x=22.4

x=32

119--120%x=103.4

119-103.4=1.2x

15.6=1.2x

x=13

75%x--96=54

75%x=96+54

0.75x=150

x=200