Question

the point 2,3lies on graph of eqn 3-(a-1)=20if the same pont lies on graph of eqn 5x+(1-2a)=3b find b​

Answer 1

Answer:

b= 1/3

Step-by-step explanation:

The point (2,3) is a solution of 3x-(a-1)y = 2a-1

Put x=2 and y=3 in given equation

3(2)-(a-1)*3 = 2a-1

= 6- 3a+3 = 2a-1

= 9-3a = 2a-1

= 5a= 10

a= 2

Point (2,3) also lies on

5x+(1-2a)y= 3b

Put x=2, y=3 and a=2

5(2)+(1-2(2))*3 = 3b

10+ (-3)*3 = 3b

10-9 =3b

b= 1/3