Question

resolver 2 . ( x - 1 ) - 1 = 8

Answer 1

2.(x - 1) - 1 = 8
2x - 2 - 1 = 8
2x - 3 = 8
2x = 8 + 3
2x = 11
x = 11/2

Answer 2

2 . (x-1) - 1 = 8
2x - 2- 1 = 8
2x- 3=8
2x = 8 +3
2x = 11
x = 11/2

espero ter ajudado