Question

For which type of pair of linear equations we can use cross multiplication with what solutions??

Answer 1

cross multiplication is used for (UNIQUE SOLUTIONS) =In which this having one solution and are consistent ,a1/a2 is not equal to b1/b2 ; (HAVING INFINITE MANY SOLUTIONS) = In which this having many soltlution and are consistent , a1/a2 is equal to b1/b2 is equal to c1/c2