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adelina 88 [10]
2 years ago
14

Three times the sum of a number and 4 is the same as 18 more than the number. what is the number​

Mathematics
1 answer:
____ [38]2 years ago
7 0

Answer:

three times the sum of a number and 4, if n were to represent the unknown number, is:

3(n + 4)

18 more than a number is:

n + 18

If these two are the same, then they are equal to each other, then:

3(n + 4) = n + 18

*Do the distributive property on the left*

3n + 12 = n + 18

*Combine like terms*

2n = 6

*Divide both sides by 2*

n = 3

The number is 3.

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