Question

解方程:62.5-x=38.78x-22.8=1.216x-5x=14.3350/x=840/12

Answer 1

62.5-x=38.7

62.5-38.7=x

x=23.8

8x-22.8=1.2

8x=22.8+1.2

8x=24

x=3

16x-5x=14.3

11x=14.3

x=1.3

350/x=840/12

350/x=70

70x=350

x=5