Hello!
You can make an equation based on what you know
A number multiplied by 6
x * 6
Subtracted by 8
x * 6 - 8
You get 34
x * 6 - 8 = 34
Now you solve it algebraically
Add 8 to both sides
x * 6 = 42
Divide both sides by 6
x = 7
The answer is C) 7
Hope this helps!