katherinemartinez173
26.06.2020 •
Mathematics
What is the algebraic expression for "the sum of three times a number and seven"? A. 3 x + 7 B. 3 x + 11 x C. 3 + 7 x
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Ответ:
A
Step-by-step explanation:
Let that number be
.
The sum of
times 
and 
.
Ответ: