nschavez123
29.10.2020 •
Mathematics
Julio says, "If you subtract 17 from my number and multiply the difference by - 3, the result is - 45." What is Julio's number?
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Ответ:
His number is -25
Ответ:
n = d - 4m ÷ 7
Step-by-step explanation:
d = 4m + 7n
d - 4m = 7n
7n = d - 4m
n = d - 4m ÷ 7
Thus, n = d - 4m ÷ 7
-TheUnknownScientist