Решите уравнение (1,65-0,3х):0,34=4,5

(1.65-0.3х):0.34=4.5 1.65-0.3х=4.5*0.34 1.65-0.3х=1.53 1.65-1.53=0.3х 0.12=0.3х 0.3х=0.12 х=0.12:0.3 х=0.4 проверка (1.65-0.3*0.4):0.34=(1.65-0.12):0.34=1.53:0.34=4.5  верно

(1,65-0,3x) : 0,34 = 4,5; 1,65-0.3x = 4,5 * 0,34 = 1,53; -0,3x = 1,53 - 1,65 = -0,12; x = 0,4