Question

The sum of 2 nos is 70.their difference is 16.find the nos

Answer 1

x+y=70
x-y=16

y will be reduced (simultaneous eqation add. property)

2x=86
x=86÷2
x=43

x+y=70
(Put the value of x in its place)
43+y=70
y=70-43
y= 27


To prove
x-y=16
43-27=16

Answer 2

Solution is attached below