👤

A+b+c=498; b-a=310; c=a+14 aflati a, b, c

Răspuns :

300+100+98=498
400-90=310
78=64+14
a+b+c=498
b-a=310=>b=a+310
c=a+14
a+a+310+a+14=498
3a+310+14=498
3a+310=498-14
3a+310=484
3a=484-310
3a=174
a=174:3
a=58
b-a=310
b-58=310
b=310+58
b=368
c=a+14
c=58+14
c=72
58+368+72=498