Question

Answer 1

a) x/2 = 2/4

x/2 = 1/2

x = 1/2 . 2

x = 1

b) x/6 = 1/(-3)

x = -1/3 . 6

x = -2

c) -1/5 = 2/x

x = 2 : (-1/5)

x = -10

d) 8/3 = -12/x

x = -12 : 8/3

x = -9/2

e) x/5 = 5/x

x² = 5²

x = 5; x = -5

f) x/(-6) = (-6)/x

x² = (-6)²

x = 6; x = -6

g) x/10 = 3/5

x = 3/5 . 10

x = 6

h) (x - 1)/6 = 1/(-3)

x - 1 = -1/3 . 6

x - 1 = -2

x = -2 + 1

x = -1

i) -1/5 = 4/(10x)

10x = 4 : (-1/5)

10x = -20

x = -20 : 10

x = -2