Răspuns :
1)X=SUMA DE BANII
X-40/100X=228⇒100X-40X/100=228⇒60X/100=228⇒60X=228×100⇒
60X=22800⇒X=22800/60⇒X=380
SUCEES
X-40/100X=228⇒100X-40X/100=228⇒60X/100=228⇒60X=228×100⇒
60X=22800⇒X=22800/60⇒X=380
SUCEES