Question

3)

۱) 9+(-4)=5
۲)5*1/2 +3*2/5
=5/2 + 6/2
=11/2​

Answer 1

9+(-4)=5

9-4=5

Transposing (-4) to R.H.S

9=5+4

9=9

Transposing 9 to L.H.S

9-9=0

(0ne is positive and other one is negative. Hence, the numbers will be cut.)

(+9)-9=0

:. The answer will be O.