Question

does the sum of two numbers is 12 and their difference is 2. find the numbers .
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Answer 1

LET X+Y=12--------(1)

X-Y=2

x=y+2-----(2)

put ---(2) in ----(1) we get

Y+2+Y=12

2Y=10

Y=5------(3)

PUT ----(3) IN ---(2) WE GET

X=5+2=7////

Answer 2

yes it is possible

Let the numbers x and y

then according to question

        x + y = 12  -(1)

and,  x - y = 2 - (2)

        x = y + 2

put  x = y + 2 in (1)

then,

  x + y = 12

  y + 2 + y = 12

  2y + 2 = 12

  2y = 10

   y = 5

put y= 5 in (2)

then,

x - y = 2

x -5 = 2

x = 7

So, the numbers are 7 and 5.

Hope this helps you..