Question

Simplity 13.17
Show that (x,y)=(2,5) and (1.1) are solutions of 4x-y=3​

Answer 1

Answer:

Step-by-step explanation:

f(x)=2

f(y)=5

∴ LHS = 4x-y

          = 4(2) - 5

          = 8-5

          = 3 = RHS

and hence, verified  ✅

Answer 2

Step-by-step explanation:

if (x,y) = 2,5

x= 2

y= 5

4x- y = 3

4×2 -5 = 3

8- 5 =3

3=3

if ( x,y) = 1 ,1

x= 1

y= 1

4x -y = 3

4x1 - 1 = 3

4-1= 3

3 = 3