Question

(-2)*0,5x=?

(1/5x)*(-2)

1 1/2z:3=?

2/3u * ? = u

-1/2v: ?=1/8v

Pomocy :D

* to razy,a np;1/2 to ułamek :3

Answer 1

(-2) * 0,5x= -1x = -x

 

(1/5x) * (-2) = -2/5x

 

1 1/2z:3= 3/2z * 1/3 = 1/2z

 

2/3u * ? = u

? = u : 2u/3

? = u * 3/2u

? = 3/2

 

-1/2v: ?=1/8v

? = -1/2v : v/8

? = -v/2 * 8/v

? = -4

Answer 2

 

(-2) * 0,5x = -x

1/5x * (-2) = -2/5x

3/2x : 3 = 3/2x * 1/3 = 1/2x

2/3u x ? = u (aby 'znikł' ułamek należy pomnożyć przez jego odwrotność)

2/3u * 3/2 = u

 

-1/2v * (-1/4) = 1/8v (czyli odwracamy)

(-1/2)v : (-4) = 1/8v

 

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Litterarum radices amarae sunt, fructus iucundiores

 

Pozdrawiam :)