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Ask two math problems of grade one in junior high school [one-yuan linear equation]
1, number of bolts = number of nuts ÷2

Set up x people to process bolts.

18x = 24( 100-x)-2

18x= 1200- 12x

30x= 1200

x=40

Nut making: 100-40=60 people.

2. suppose two people meet after leaving for x h in b,

25 points =5/ 12 hours

10×(x+5/ 12)+8x=30

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