Question

f+t+b=121, daca f=t-25 si b=(f+t)+3, aflati f, t si b

Answer 1

f+t+b=121
f=t-25
b=(f+t)+3
f+t+(f+t)+3=121
2f+2t+3=121
2f+2t=121-3
2f+2t=118
2xt-25+2t=118
4t-25=118
4t=118-25
4t=93
t=93:4
t=23,25
f=25-23,25
f=1,75
b=23,25+1,75
b=25
Sper că am fost de ajutor! :D