va rogggggg....Dau coroana ....promit....ajutati-ma.....VA IMPLORRRRR

Răspuns:
3a=4b=>a=4b/3
a+b=14
4b/3+³⁾b=³⁾14
4b+3b=42=>b=42:7=>b=6
a=4·6:3=>a=8