6x-3y=-5 ①
4x-9y+1=0 ②
①×3,得:
18x-9y= -15
18x-9y+15=0 ③
③-②,得:
14x+14=0
x= -1
将x= -1,代入①,得:
6*(-1)-3y= -5
y= -1/3
所以
x= -1
y= -1/3
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