Question

Oblicz x :

a) 12 * x = -4

b) x : 8 = -2

c) 8 * x = 0,5

d) x : 9 = -3/5

e) -4 i 1/4 * x = -12

f) x : 6,9 = -17 i 1/4

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Answer 1

a) 12 * x = -4 ||:12

x = (-1/3)

x = -0,(3)

 

b) x : 8 = -2 ||*8

x = (-16)

 

c) 8 * x = 0,5 ||:8

x = 1/16

0,0625

 

d) x : 9 = -3/5 ||*9

x = (-27/5)

x = -5,4

 

e) -4 i 1/4 * x = -12 (?)

17/4 * x = -12 ||:(-17/4)

x = 48/17

 

f) x : 6,9 = -17 i 1/4

x : 6,9 = -17,25 ||*6,9

x = -119,025