Răspuns :
x=numar de gramezi
2x+3x+4x=234
9x=234
x=234:9=26 gramezi
26x2=52 alune
26x3=78 alune
26x4=104 alune
verificare 52+78+104-234
2x+3x+4x=234
9x=234
x=234:9=26 gramezi
26x2=52 alune
26x3=78 alune
26x4=104 alune
verificare 52+78+104-234
primul I_____I
al doilea I_____I.....+1aluna....I
al treilea I_____I.....+1aluna....I......+1aluna.....I
234 - 3= 231 alune
231: 3= 77 alune primul frate
77+1 =78 alune al doilea frate
77+ 2=79 alune al treilea frate
al doilea I_____I.....+1aluna....I
al treilea I_____I.....+1aluna....I......+1aluna.....I
234 - 3= 231 alune
231: 3= 77 alune primul frate
77+1 =78 alune al doilea frate
77+ 2=79 alune al treilea frate