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Elden [556K]
3 years ago
14

Can someone help me with number 33 please

Mathematics
1 answer:
PIT_PIT [208]3 years ago
8 0
2m + 15(m - 1) = 20(m - 3)

2m + 15m - 15= 20m - 60

17m - 15 = 20m - 60

-3m = -45

m = 15
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_____

<em>Comment on the method</em>

Often it works well to add the integer parts and fractional parts separately, then make adjustments in the final result.

You can convert all the numbers to improper fractions, then back:

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Doing this requires you to do 3 conversions between mixed numbers and improper fractions, whereas the method shown above only does 1 conversion (at the end).

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14/15


5/15 + (3x3 / 3x5) = 5/15 + 9/15 = 14/25
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Read 2 more answers
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