a number exceeds another number by 5.the sum of the numbers is 19. find the smaller number ?

A. 5 

B. 6 

C. 7 

D. 12 

Details:

Let one of the numbers be “x”; then the other is “x+5”. Equation: x + x+5 = 19 2x = 14 x = 7 (the 1st number) x+5 = 12 (the other number).