Question

the sum of two number is 21. the larger number is 6 less than teice the smaller number. find the two numbers.

Answer 1

12 and 9

Explanation:

x=larger number y=smaller number

x+y=21

x=2y-6 (system of equations)

x=21-y

2y-6=21-y

3y=27

y=9

x+9=21

x=12