1)4 * x = 3 * 8/94x = 8/3x = 8/3 * 1/4x = 2/32)7 * x = 5 * 2,87x = 14x = 14 : 7x = 23)12 * x = 9 * 712x = 63x = 63 : 12x = 5,254)5,2 * x = 8 * 6,55,2x = 52x = 52 : 5,2x = 105)3,6 * x = 4,5 * 43,6x = 18x = 18 : 3,6x = 56)4 * x = 15 * 1 1/34x = 15 * 4/34x = 20x = 20 : 4x = 5