9514 1404 393
Answer:
18, 21
Step-by-step explanation:
Let x represent the smaller number. Then x+3 is the larger number, and the other relation between them is ...
3(x+3) = (7/10)(5x)
6x +18 = 7x . . . . . multiply by 2 and simplify
18 = x . . . . . . . . . . subtract 6x
The two numbers are 18 and 21.