(3целых1/2+(2/3)в квадрате)умножил х+3/18=5/18

[3 1/2 + (2/3)^2] • х + 3/18 = 5/18
(7/2 + 4/9) • х = 5/18 - 3/18
(63/18 + 8/18) • х = 2/18
(71/18) • х = 2/18
х = 2/18 : 71/18
х = 2/18 • 18/71
х = 2/71