24%/x=3/5还有40%x-2.8=7.6

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24%/x=3/5还有40%x-2.8=7.624%/x=3/5还有40%x-2.8=7.624%/x=3/5还有40%x-2.8=7.624%/x=3/53/5x=24%3x=0.24X5x=0.4

24%/x=3/5还有40%x-2.8=7.6
24%/x=3/5
还有40%x-2.8=7.6

24%/x=3/5还有40%x-2.8=7.6
24%/x=3/5
3/5x=24%
3x=0.24X5
x=0.4
40%x-2.8=7.6
40%x=7.6+2.8
0.4x=10.4
x=26

24%/x=3/5
x=24%÷3/5
x=2/5
40%x-2.8=7.6
40%x=7.6+2.8
0.4x=10.4
x=10.4÷0.4
x=26