Question

Determinați nr natural x care verifica următoarele egalități:1453-x=783 ; x-633=2941 ; x-67-92=267

Answer 1

             Rezolvare

a) x=1453-783
    x=670
b) x=633+2941
    x=3574
c) x-67=267+92
    x-67=359
   x=359+67
  x=426

Answer 2

$a).1453-x=783 \\ -x=783-1453 \\ -x=-670 \\ x=670 \\ b).x-633=2941 \\ x=2941+633 \\ x=3574 \\ c).x-67-92=267 \\ x=267+67+92 \\ x=426$