The sum of two numbers is 47. The greater number is 9 more than the smaller number. Which equation can be used to solve for the smaller number? (5 points)
x + (x + 9) = 47
x − (x + 9) = 47
x(x + 9) = 47
x(x − 9) = 47
The correct equation that can be used to solve for the smaller number is:
x + (x + 9) = 47