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Anonymous
5*10-4. 50-4. 46.
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X= 10
x1:y1 = x2:y2 4:-2 = x2:5 x2 = (4*5)/-2 x2 = -10
x/-4 + 5 = -5x/-4 +5 -5 = -5 -5x/-4 = -10x/-4 x -4 = -10 x -4x = 40
15
10x = 4 x = 4/10= 2/5 = .4
5 x 4 equals 4 x 5 is commutative property.