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OpenStudy (anonymous):
What statement makes the open sentence 49 – 7x = 21 true? A. x = 11 B. x = 7 C. x = 4 D. x = 3
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OpenStudy (lncognlto):
Well, rearrange the equation: 49 - 7x = 21, so -7x = 21 - 49, ao -7x = -28, so 7x = 28, so then x = 28/7. What is the value of x/
OpenStudy (lncognlto):
*so
OpenStudy (anonymous):
It is C. because 28/7=4
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