Question

2.(x-1) menos 3 igual a 25

Answer 1

2(x-1) - 3 = 25
2x -2 -3 = 25
2x -5= 25
2x= 25+5
2x= 30
x= 30/2
x= 15 .. :)

Answer 2

$2.(x-1)-3=25 \\ \\ 2x-2-3=25 \\ \\ 2x=25+3+2 \\ \\ x= \frac{30}{2} \\ \\ x=15$