Which value of x makes the equation x + 7 = 21 true?
O A. 7
O B. 14
O c. 21
...
Mathematics, 02.12.2020 19:00 imorn20731
Which value of x makes the equation x + 7 = 21 true?
O A. 7
O B. 14
O c. 21
OD. 28
Answers: 2
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