2x+y=42
8x+7y=36
Using the process of eliminations.

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

Find the area of the shaded region.

David and alton are training for a race. they spend 35 minutes stretching and then go on a 5 mile practice run. david runs at a pace of 7 min/mile. alton runs at a pace of 8 min/mile. write an equation for each runner that shows the total length of their workout. then solve each equation showing your work