Question

When I weigh Frizbee, Pepper, and Gizmo together, the scale reads 200 pounds. Gizmo weighs 50 pounds more than Frizbee. Pepper weighs 30 pounds less than Frizbee. How many pounds do each of my pets weigh?

Answer 1

G = F + 50

P = F - 30

G + P + F = (F+50) + (F-30) + F = 200

Solve for F, then the others.