Question

If the sum and difference of two numbers is 35 and 7 respectively find them

Answer 1

Let those numbers are x and y

X+y=35

X-y=7

Therefore 2x=42

X=21

Put the value of X in eqn x+y=35

21+y=35

Y=14

Therefore x=21 and y =14

Answer 2

let one no. is x
other no. is 7
7+x=35
x=35-7
x=28