Question

Care este raspunsul?
Dau coroana celui mai bun răspuns ​

Answer 1

a+a+2+a+4+a+6+a+8+a+10=a+6+219

6a+30=a+225

6a-a=225-30

5a=195

a=195:5

a=39

a+2=39+2=41

a+4=39+4=43

a+6=39+6=45

a+8=39+8=47

a+10=39+10=49

Verific:

suma lor=a+6+219=45+219=264

39+41+43+45+47+49

80+43+45+47+49

80+90+45+49

170+45+49

215+49

264 ✔