Question

Please help and explain step by step , how to get the value :(​

Answer 1

First one is three i think

Answer 2

Let us consider the values of x and y
So 3x-2y-5=17
=>3x-2y=22.......(1)

Putting it in the first eq.

3x-2y+9= 22+9=31(Ans)
(Because 3x-2y=22 in equation 1)


Now multiplying (1) by 3

(3x-2y)*3=(22*3)

9x-6y=22*3

9x-6y=66(Ans)

I hope it helps and you understand.