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Help solve math problems
_ Tell me more about pupils. I'll just give you an equation.

1.4/7X - 1/8X =36

You didn't say it for long. Maybe he worked all day.

3.X - ( 25%X + 30%X) = 162

4. Let A be X and B be (140-X).

12.5% X+( 140-X)= X- 12.5% X

5. What are your requirements? The same volume or the same surface area.

The square of (20 schools) x = 10 The square of the schools is multiplied by 20.