linear equations

Asked by  | 12th Feb, 2009, 10:09: PM

Expert Answer:

Part 1.          2(ax-by)+(a+4b)=0 .............(1) 

2(bx+ay)+(b-4a)=0 ...................(2)

multiplying  1st by a and 2nd by b and adding we get y term cancelled out solving we get x = -1/2 and  multiplying  1st by b and 2nd by a and adding we get xterm cancelled out   solving we get  y = 2

 

Answered by  | 12th Feb, 2009, 11:05: PM

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