Răspuns :
[tex]56 - 28 \div (x + 2) = 54 \\ \\ 28 \div (x + 2) = 56 - 54 \\ 28 \div (x + 2) = 2 \\ x + 2 = 28 \div 2 \\ x +2 = 14[/tex]
[tex]56 - 28 \div (x + 2) = 54 \\ \\ 28 \div (x + 2) = 56 - 54 \\ 28 \div (x + 2) = 2 \\ x + 2 = 28 \div 2 \\ x +2 = 14[/tex]