-16+20x-8y=0 36=-18y-22x

solve by elimination

-16+20x-8y=0 
36=-18y-22x

 

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1 Answer

-16+20x-8y=4(-4+5x-2y)=0, so -4+5x-2y=0 or 5x-2y=4 (1)

36=-18y-22x, 22x+18y+36=0 so 22x+18y=-36 (2).

9(1) 45x-18y=36 +

(2) 22x+18y=-36

67x=0, x=0, y=-2.
by Top Rated User (1.1m points)

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