3x - 2y - 24= 0 ==>vezes 2 ==>6x-4y-48=0 (i)
2x + 7y + 9= 0 ==>vezes 3 ==>6x+21y+27 =0 (ii)
(i)-(ii)
-25y-75=0
y=-75/25=-3
2x+7y+9=0 ==>2x-3+9=0 ==>2x=-12 ==> x=6
Centro(6,-3)
(x-a)²+(y-b)²=r² ==>(x-6)²+(y+3)² =25
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3x - 2y - 24= 0 ==>vezes 2 ==>6x-4y-48=0 (i)
2x + 7y + 9= 0 ==>vezes 3 ==>6x+21y+27 =0 (ii)
(i)-(ii)
-25y-75=0
y=-75/25=-3
2x+7y+9=0 ==>2x-3+9=0 ==>2x=-12 ==> x=6
Centro(6,-3)
(x-a)²+(y-b)²=r² ==>(x-6)²+(y+3)² =25