Vidya and Pratap went for a picnic. Thier mother gave them a water bottle that contained 5liters of water. Vidya consumed 2/5 of the water. Pratap consumed the remaining water. How much water did Vidya drink? What fraction of the total quantity of water did Pratap drink

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times both sides by 2, times () by 8, add alile terms, move terms, add alike and caculate divide both sides by 3

check above link.

graphically?   well, you graph them both, the solutions is where they both intersect each other, since there are two solutions, meaning they will meet twice, or namely the linear will run into the quadratic curve twice, and where they meet, those x,y coordinates are the solutions to the system.