Question

2·(9×-4)-7+(6-5×)·3=18

Answer 1

2.(9x - 4) - 7 + (6 - 5x).3 = 18 --->
18x - 8 - 7 + 18 - 15x = 18 --->
18x - 15x = 18 + 8 + 7 - 18 --->
3x = 15 --->
x = 15 / 3 --->
x = 5