Question

помогите с уравнениям
9+10•(3х-10)=2
х=?

Answer 1

9 + 30x - 100 = 2 
30x = 102 - 9
30x = 93
x = 93/30 
x = 3, 1 

Answer 2

спосибо

Answer 3

9 + 30x - 100 = 2
30x = 102 - 9
30x = 93
x = 93/30
x = 3, 1

Answer 4

9+10*(3x-10)=2; 9+30x-100=2; 30x-91=2; 30x=93; x=93:30; x=3,1