The number machine
A number is put into a machine.
First, the machine adds 7.
Then it doubles the result.
Finally, it subtracts 9.
The final answer is 25.
What was the original number?
Word Problem
A bridge is built across a river. One quarter of the bridge is over the left bank of the river and one third of the bridge is over the right bank. The river is 120 m wide. How long is the bridge?
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