Question

Kerry and Luke biked a total of 18 miles in one week. Kerry biked 4 miles more than Luke. Write a system of equations and solve it to find how far each boy biked

Answer 1

Let x = Kerry's distanceLet y = Luke's distance  x + y = 18         eq1 x = y + 4x - y = 4             eq2   Our equations are: x + y = 18x - y = 4