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(y- (-5)) / (-7 - (-5)) = (x - (-2)) / (3 - (-2))
(y + 5) / -2 = (x+2) / 5 >>>>>Lalu kali silang
5y + 25 = -2x - 4
5y = -2x - 29 bisa ditulis y = (-2/5) x - (29/5) bisa ditulis 5y + 2x = -29