Question

Rozwiąż równania : x+7=10 ; x-1=6 ; 3x-6=9 ; 4/9(cztery dziewiąte ) x=1/3 (jedna trzecia) ; 1/3 (jedna trzecia) x+1=5 .

Answer 1

x+7=10                            4/9x=1/3 /4/9

x=10-7                                x=1 i 1/3

x=3                                     

                                               1/3x+1=5

x-1=6                                      1/3x=5-1

x=6+1                                      1/3x=4 /1/3

x=7                                             x=1/12

 

3x-6=9

3x=9+6

3x=15/3

x=5