The sum of two numbers is 91. The greater number is 7 more than the smaller number. Which equation can be used to solve for the smaller number?

A. x (x + 7) = 91

B. x (x - 7) = 91

C. x + (x + 7) = 91

D. x - (x + 7) = 91

96 ounces equals how many pounds

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