Answer:
3, 18
Explanation:
To write an equation or an expression, define the variables.
x is the first number.
6x is the second number since it is 6 times the first.
Add the expressions together to 21 to solve.
x + 6x = 21
7x = 21
x=3
The first number is 3. The second is 6*3 = 18.