The sum of two numbers is 82. One number is three less than four times the other. Find the two numbers.
a+b=82,a=4b−3→4b−3+b=82→5b−3=82→5b=85→b=17→a=4∗17−3=65
x + y = 82
x + 4x - 3 = 82
x = 17
y = 4x - 3 = 65
