\[3x-1=9\]

1
Add 11 to both sides.
3x=9+13x=9+1

2
Simplify  9+19+1  to  1010.
3x=103x=10

3
Divide both sides by 33.
x=103x=\frac{10}{3}

Done

Decimal Form: 3.333333

Check Answer ▼
How can we make this solution more helpful?