Question

解方程 6x-3=41.4 3.2x+4=32.8 0.6x-0.4=21.8 2x+3=2

解方程 6x-3=41.4
3.2x+4=32.8
0.6x-0.4=21.8
2x+3=21
0.2x-7=0.4
x-1.8=5.6

Answer 1

x=7.4
x=9
x=3.7
x=9
x=3.7
x=7.3

追答

口算的

追问

过程