Then: 2×4+2X= 1 1
Solution: X= 1.5
A: Each child ticket 1.5 yuan.
2) Solution: Let each unit price be X yuan.
Then: 6X+9X= 1.5
Solution: X=0. 1
A: The unit price is 0. 1 yuan.
3) Solution: Suppose my age is X this year.
So: 3X=X+24
Solution: X= 12
So: X+24=36
A: I am 12 years old and my mother is 36 years old.
4) Solution: Let each set of books have X volumes.
Then: 2.5X+3X=22.
Solution: X=4
There are 4 books in each series.
5) Solution: Assuming that the goods are shipped x times in the afternoon, the goods can be shipped.
Then: 3×5+5X=35.
Solution: X=4
A: Four times in the afternoon.
6) Solution: Let Xiaohong walk x meters per minute on average.
Then: 7×45+7X=560.
Solution: X=35
Xiaohong walks 35 meters per minute on average.
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