Twice the difference of a number and 4 is equal to three times the sum of the number and 5 find the number

Question

Mathematics

Madalynn Mcclure

4 May, 03:55

Twice the difference of a number and 4 is equal to three times the sum of the number and 5 find the number

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Answers (1)

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Dominik Murphy · Answer 1

Twice the difference of a number and 4 is equal to three times the sum of the number and 5

number - N

find the number

2 (N - 4) = 3 (N + 5)

2N - 8 = 3N + 15

-15 - 8 = 3N - 2N

- 23 = N

Check

2 (N - 4) = 3 (N + 5)

2 (-23 - 4) = 3 (-23 + 5)

2 (-27) = 3 (-18)

-54 = - 54