Question

1) Rezolvati ecuatiile in multimea numerelor naturale:

a) x+649-235=1074
c) 32853+x=80003-1783
e) 5042-x+214=3507

2)Rezolvati ecuatiile in multimea numerelor naturale:

a) 5*x=725
c) 72*x=3600
e) x*14=210
g) x*23=2323

Answer 1

Aflăm pe x:
a) x+649=1074+235
x+649=1309
x=1309-649
x=660
c)32853+x=78220
x=78220-32853
x=45367
e)5042-x=3507-214
5042-x=3293
x=5042-3293
x=1749
Aflăm pe x:
a)x=725:5
x=145
c)x=3600:72
x=50
e)x=210:14
x=15
g) x=2323:23
x=101