Question

Rezolvati urmatoarele ecuati unde x este numar natural a)x+2=5 b)x-11=4 c)x+9=21 d)15=x-34 e)49=x+27. f)61=x-20
g)3x=6 h)2x=8

Answer 1

x+2=5,x=5-2,x=3,,,,,,x-11=4,,,x=11+4=15,,,,x+9=21,x=21-9=12,,,,-x=34+15=49,,,,49=x+27......nu mai am timp

Answer 2

a)×=5-2=3;b)×=11+4=15;c)21-9=11;d)×=34+15=49;e)×=49-27=22;f)x=20+61=81;g)6;3=2;h)8:2=4