Tolong nomor 9 yaa makasih
Matematika
AngelieSungkar
Pertanyaan
Tolong nomor 9 yaa makasih
1 Jawaban
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1. Jawaban DB45
Pecahan
misal pecahan itu x./y
(x -2) / (y+2) = 1/3 --> y + 2 = 3( x-2)
y + 2 = 3x - 6
y = 3x - 8 .....(1)
(x-1) / (y+1) = 1
y + 1 = x - 1
y = x- 2...(2)
(1)= (2)
3x - 8 = x - 2
3x - x = 8 - 2
2x = 6
x = 3 sub ke y = 3x - 8
y = 3(3) - 8
y = 1
pecahan itu x/y = 3/1