Question

Solve  2x + 3y = 5 and 4x - 3y = 1 by cross multiplication method​

Answer 1

Here, a1= 3, b1= -1, c1=-5

a2=4, b2= -3, c2= 1

We have : x/-1x1-5x-3= y/-5x4-3x1= 1/-3x3-4x-1

=>x/-1+15=y/-20-3=1/-9+4

=>x/14-y/-23-1/-5

Therefore, x / 14 = 1/- 5

and y / - 23 = 1/- 5

=>x=14/-5.

=>y=23/5

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