Rezolvatii


a) 1847-x=243+74


C) 1276+(35+127-x)=419


Răspuns :

a) 1847-x = 317 -x = 317-1847 -x = - 1530 |*(-1) x = 1530 c) 1276+(162-x) = 419 162-x = 419-1276 162-x = -857 -x = -857-162  -x = - 1019 |*(-1) x = 1019