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OpenStudy (anonymous):
. Which equation best represents this situation? * The sum of 21 and an unknown number is equal to 30. A. 21b = 30 B. 21 + b = 30 C. 21/b = 30 D. 21 - b = 30
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OpenStudy (anonymous):
option b
OpenStudy (anonymous):
B and means +
OpenStudy (anonymous):
yes
OpenStudy (anonymous):
thanks
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