a fost răspuns

aceste 3 ecuatii:

1/2 - 1/5 x = 1/3

x : 2/5 - 1/3 = 2/1

x : 2/3 - 1/4 = 3/4

Răspuns :

Rockstarmateiask

Răspuns:

1/2 - 1/5 x = 1/3

15 - 6x = 10

6x = 5

x = 5/6

x : 2/5 - 1/3 = 2/1

5/2 x - 1/3 = 2

15x - 2 = 12

15x =14

x = 14/15

x : 2/3 - 1/4 = 3/4

3/2 x - 1/4 = 3/4

6x - 1 = 3

6x = 4

x = 4/6 = 2/3

Tomsavictoria91ask

a)1/2-1/5x=1/3|•30. b)x:2/5-1/3=2/1. c)x:2/3-1/4=3/4

15-6x=10. x×5/2-1/3=2. x×3/2-1/4=3/4

-6x=10-15. 5/2x-1/3=2. 3/2x-1/4=3/4|•4

-6x=-5. 15x-2=12 6x-1= 3

x=5/6. 15x=12+2. 6x=3+1

15x=14. 6x=4

x=14/15. x=4/6=2/3