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kkurt [141]
3 years ago
5

Three times the difference of a number and 7 is 30. Find the number.

Mathematics
1 answer:
oksano4ka [1.4K]3 years ago
8 0

Answer:

<h2>x = 17</h2>

Step-by-step explanation:

3(x - 7) = 30 is our equation, since we take 7 away from the number and then multiply the result by 3.

3x - 21 = 30

Add 21

3x = 51

Divide by 3

x = 17

To check.

3(17 - 7(

3(10)

30 = 30 Correct

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