Respuesta :

Aliwohaish12
3x-1=20,,3x=21,,x=7 ..............
SJ2006
In mathematical expression, it would be:
(3x-1)/2 = 10
3x-1 = 10*2
3x = 20 + 1
x = 21 / 3
x = 7

So, your final answer is 7

Hope this helps!