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y-3/-5-3 = x-1/8-1
y-3/-8 = x-1/7
7(y-3) = -8 (x-1)
7y-21 = -8x+8
7y+8x = 8+21
7y+8x = 29
ket: / itu sama dengan 'per' atau garis pembagi
mohon dikoreksi lagi, semoga membantu :)