Răspunsuri

  • Utilizator Brainly
2014-06-15T14:41:12+03:00
(72-24+9)*a-(1000-875)=890:2
57*a-125=445
57*a=445+125
57*a=570
a=570:57
a=10
explicatie mai detaliata te rog.... ce ii cu 57*a ?
* = inmultire
adica 57xa
2014-06-15T14:49:51+03:00
(72-24+9)xa - (1000-875)=890:2
57xa - 125=445
57xa=445+125
57xa=570
a=570:57
a=10