4х + 9 : 2 1/3 = 3х : 0,5
1)4*x+9/7 = 3*x/(1/2) 2)4*x+9/7 = 3*x/1/2 3)4*x = -9/7 + 6*x 4)-2*x = -9/7 5)x = -9/7 / (-2) 6)х= 9/14 x1 = 0.642857142857