JEE Main 20231 Feb, Evening shiftMathematicsMediumPermutations and Combinations98× since 2002Number of integral solutions to the equation x+y+z=21x+y+z=21x+y+z=21, where x≥1,y≥3,z≥4x \ge 1,y\ge3,z\ge4x≥1,y≥3,z≥4, is equal to ____________.Your answerType your answer. Integers and decimals are accepted.CheckSkip · show solution