Question

Hello mam!
Pls explain the question im the attached pic​

Answer 1

Answer:

13(y-4)-3(y-9)-5(y+4)=0

13y-52-3y+27-5y-20=0

13y-3y-5y-52+27-20=0

5y-45=0

5y=45

y=45÷5

y=9

Let's check whether it's correct or not

13(9-4)-3(9-9)-5(9+4)=0

13×5-3×0-5×13=0

65-65=0

0=0

L.H.S=R.H.S

hence verified

Let's check whether it's correct or not