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klasskru [66]
2 years ago
7

d. If you double a certain number and subtrack 7 you get the same answer as when you add 5 to the number, Determine the number​

Mathematics
1 answer:
umka21 [38]2 years ago
4 0

Answer:

12

Step-by-step explanation:

Let n = the number.

2n - 7 = n + 5

n = 12


Let’s check if we got the right answer by substituting 12 for n into the original equation.

2*12 - 7 = 12 + 5

24 - 7 = 17

17 = 17

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