A car and a truck leave Allen Park at the same time heading

A car and a truck leave Allen Park at the same time, heading in opposite directions. When they are 350 miles apart, the car has gone 70 miles farther than the truck. How far has the car traveled?

Can you help me set up an equation for this problem?

Thank you

Solution

let the distance travelled by car be \"x\"

travelled by truck be \"y\"

they are moving in opposite direction

total distance = x+y

x + y = 350            (1)

distance travelled by car is 70 miles more

x - y = 70            (2)

using these we can find x and y