The sum of three numbers is 296. The first number is 5 less than two times the second number. The third number is 7 more than four times the second number. Find the three numbers.

Answer 1

x+y+z=296

x=2y-5

z=4y+7

Substitute :

2y-5+y+4y+7=296

7y=294

You solve it from here!