解方程要公式X/0.8=3 X+1.37=6.1 7X=17.5 X-4.8=12 怎样简便就怎样算也要公式1.8/0.5/0.6 2.75/2.5x13

Question

50.64/25.6-3.15 4.67X96+46.7X0.4 469X1.25X8 5.4-0.4X5

Answer 1

X/0.8=3
x=2.4

X+1.37=6.1
x=6.1-1.37
x=4.73

7X=17.5
x=2.5

X-4.8=12
x=16.8

1.8/0.5/0.6=3.6/0.6=6

2.75/2.5x13=1.1×13=14.3

50.64/25.6-3.15 这个题目有问题
=

4.67X96+46.7X0.4
=46.7*(9.6+0.4)
=46.7×10
=467

469X1.25X8
=469×10
=4690

5.4-0.4X5
=5.4-2
=3.4追问

50.64/25.6-3.15 是80.64/25.6-3.15对不起啊

追答

80.64/25.6-3.15=3.15-3.15=0