Question

Find the value of a and b for which equations are x+2y=1 and (a-b)x + (a+b)y = a+b-2 have infinitely many solutions

Answer 1

Answer:

Given pair of linear equations are

x+2y=1

(a-b)x+(a+b)y=a+b-2

on comparing with ax+by+c=0,we get