the sum of two numbers is 63. the smaller number is 21 less than the larger number. what are the numbers

42 and 21

Step-by-step explanation:

Let x and y be the two numbers

the sum of the two numbers is 63

y+x = 63

The difference between the numbers is 21

x-y= 21

so the two equations are :

add both equations to eliminate y

x+y+x-y = 63+21

2x =84

x= 42

y= 42-21 = 21

the two numbers are 42 and 21

25. C

26. B

27. C

Step-by-step explanation: