(6,5c+2,9)•4,8=113,36 Решить уравнение
(6.5с+2.9)*4.8=113.36 6.5с+2.9=113.36:4.8 6.5с+2.9=23.61 6.5с=23.61-2.9 6.5с=20.71 с=20.71:6.5 с=3.18