Question

for what value of a the system of equations 3x+2y=5 and (a+1)x+(a-1)y=2a-1 represent the prallel lines

Answer 1

Step-by-step explanation:

If these represents parallel lines tgen :

a1/a2 = b1/b2 not equal to c1/c2.

so , 3/a+1= 2/a-1 not equal to 5/2a-1.

3/a+1 = 2/a-1..

2(a+1)=3(a-1).

2a+1=3a-1.

1+1=3a-2a.

2= a.