Question

check whether the following pair of linear equations has unique solution or not if so solve it by cross multiplication method 23x- 17y+ 11 =0 and 31x + 13y - 57 =0

Answer 1

heya..


your answer is in the pic attached..


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Answer 2

Step-by-step explanation:

23x-17y+11=0 1 equation

31x+13y-51=0 2 equation

we know that in unique solution a1/a2 is not equal to b1/b2

so a1/a2 = 23/31

and b1/b2 = -17/13

here a1/a2 is Not equal to b1/b2

therefore it has unique solution

hope it helps you

thanks