Răspunsuri

2014-11-08T20:37:07+02:00

1.
453-17+x=2045

436+x=2045
x=2045-436
x=1609
2.
77+x+124+14*28+17
x+201=14*28+17
x+201=392+17
x+201=409
x=409-201
x=208
2014-11-08T20:40:02+02:00
77+x+124=392+17 =77+x+124=409 =77+x=409-124 =77+x=285 =x=285-77 x=208