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alexdok [17]
3 years ago
14

When 31 times a number is increased by 40, the answer is the same as when 200 is decreased by the number

Mathematics
2 answers:
cricket20 [7]3 years ago
8 0

n - a number

31 times a number is increased by 40 is equal 200 is decreased by the number

31n + 40 = 200 - n      <em>subtract 40 from both sides</em>

31n = 160 - n      <em>add n to both sides</em>

32n = 160     <em>divide both sides by 32</em>

n = 5

mojhsa [17]3 years ago
3 0

31x+40=200-x\\32x=160\\x=160/32\\x=5

The number is 5.

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Answer:

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