|-5|+35-19-x=12
ajutor


Răspuns :

|-5| + 35 - 19 - x = 12

5+35 - 19 - x = 12

-x = 12-21

-x = -9 |*(-1)

x = 9

|-5| + 35 - 19 - x = 12

+ 5 + 35 - 19 - x = 12

-x + 21= 12 - 21

-x = 12 - 21

-x = -9    | × (-1)

x = 9