решите уравнение : (1/3+1/2)×x=3.75

(1/3+1/2)*x=3.75(2/6+3/6)*х = 3.755/6 * х = 3.75х = 3.75 : 5/6х = 3.75* 6/5 = 375/100 * 6/5 = 2250/500Сокращаем на 250х = 9/2 = 4 1/2