Question

Afla suma 3a+2b daca sunt indeplinite simultan conditiile.a×(b+5)=336 si a =301:b

Answer 1

a(b+5)=336
a=301/b
ab+5a=336
inlocuim a cu 301/b
301b/b+5*301/b=336
301+1505/b=336
1505/b=336-301
1505/b=35
b=43
a=301/43=7
3a+2b=3*7+2*43=21+86=107