NCERT Figure it Out 8 - Gauri and Naina - Algebra Play

Question: Naina has twice as many cows as Gauri. If Naina gave Gauri 3 cows, they would have equal numbers. How many cows does each have?

Answer: Gauri 6 cows, Naina 12 cows.

Full step-by-step NCERT solution with diagrams on Something by Zero.