Question

sum of two number is 137 and their difference is 43 find the number

Answer 1

Let x= small no.
y = big no.
so...x+y=137.......1st eq.
and..
x-y=43....2nd eq...
Solve this eq...u will get ur answer...
Hope it Helps.

Answer 2

Let to be x and y respectively
A/Q
x+y=137
x-y=43
by elimination method.
we get
x+y=137
x-y=43
______
2y=94
y=94/2
y=47
then,
x+y=137
x+47=137
x=137-47
x=90
so, number 90 and 47.....