Question

For what value of a and b does the following system of equations have infinitely many solutions:-
2x + 3y = 7,
(a-b)x + (a+ b)y= 3a + b -2

Answer 1

after that
a1=1 b1=-5 c1=0
a2=1 b2=-5 c2=0
a÷15 = b÷3

a= 5 and b= 1

hope it helps you.