1.

The sum of two numbers is 11 and their difference is 9.

Answer»

let two NUMBER be x and ytherefore ,x+y=11 ___ eqn(1)x-y=9___eqn (2)ADDING eqn (1) and (2)Step-by-step EXPLANATION:x+y=11x-y=9_____2x = 20X =10putting value of x in eqn (1)10+y=11y =11-10y = 1value of two number are 10 and 1



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