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jackrider6563
06.07.2021 •
Mathematics
The sum of twice a number and 13 is 47. Find the number.
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Ответ:
17
Step-by-step explanation:
In this problem, the phrase "a number" can be interpreted as a variable. In this case, let the variable be "x."
Thus, "twice a number" = "2x"
"and 13" = "+ 13"
"is 47" = "= 47"
Thus, the problem is simply 2x + 13 = 47.
Then, simply subtract 13 from both sides to get 2x = 34.
Then, simply divide both sides by 2 to get x = 17.
Because "the number" is "x," the number is 17.
Hope it helps :) <3 and lmk if you need more help
Ответ:
17
Step-by-step explanation:
you represent the unknown by a variable
for example X
2x +13=47
Ответ: