9x-11y+1=0,4xx-5y-3=0
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9x-11y+1=0,4xx-5y-3=09x-11y+1=0,4xx-5y-3=09x-11y+1=0,4xx-5y-3=09x-11y+1=0,①4x-5y-3=0②①×5-②×11得:45x-4
9x-11y+1=0,4xx-5y-3=0
9x-11y+1=0,4xx-5y-3=0
9x-11y+1=0,4xx-5y-3=0
9x-11y+1=0,①
4x-5y-3=0 ②
①×5-②×11得:
45x-44x+5+33=0
x=-38
①×4-②×9得:
-44y+45y+4+27=0
y=-31
∴x=-38
y=-31
9x-11y+1=0,4xx-5y-3=0
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