Question

J. Which of the following pairs of linear equations has unique solution, no solution, or
infinitely many solutions. In case there is a unique solution, find it by using cross
multiplication method.
© 2-3y - 3 = 0
(1) 2x+y=5
3r-9y-2=0
3x +2y=8
(ii) 3r-5y=20
(iv) x-3y-7=0
6r-10y=40
3x-3y-15=0​

Answer 1

pls check by comparison their ratio

i,e

a1/a2= b1/b2= c1/c2