Question

解方程3.8+2x=63 x÷3=1.2 3.4x-48=26.

Answer 1

解方程3.8+2x=63 x÷3=1.2 3.4x-48=26.8

3.8+2x=63

2x=63-3.8 移向

2x=59.2

x=59.2除以2

x=29.6

x÷3=1.2

x=1.2*3 :除数=被除数÷商

x=3.6

3.4x-48=26.8

3.4x=26.8+48

3.4x= 74.8

x= 74.8除以3.4

x=22