Решить уравнение: 1) 486: (5x+2)=18 2) 5*(14+b)+6b=158

486 х : ( 5 х + 2 ) = 18
5x+2=18/486
5x+2=1/27
5x=1/27-2
5x = -53 / 27
x= -53/27 : 5
x = - 53/135
x = -0.39
5*(14+b ) +6b = 158
70+5b +6b = 158
11b = 158-70
11b = 88
b=88/11
b=8