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
10x = 4 x = 4/10= 2/5 = .4
15
5 x 4 equals 4 x 5 is commutative property.
x + 3x - 10 = 5 - 4 4x - 10 = 1 4x = 1 + 10 x = 11/4
x = 10/8 or 5/4 or 1 and 1/4 or 1.25
2x - 6 = 4 2x = 4 + 6 = 10 x = 10/2 = 5 ∴ x = 5
1 x 20, 2 x 10, 4 x 5, 5 x 4, 10 x 2, 20 x 1.
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
If: 3x/4 -5 = x/3 +10 Then: x = 36
8 - 10 + 7 = 5 x = 4
10x = 4 x = 4/10= 2/5 = .4
15
5 x 4 equals 4 x 5 is commutative property.
2x - 3y -7y + 4x - 5 = 6x - 10y - 5 and (6 x 10) - (10 x 4 ) - 5 = 60 - 40 - 5 = 15