What is the first step in solving the problem, 3x-8/12=9?

A) Add 8 to both sides.
B) Multiply by 12 on both sides.
C) Divide by 3 on both sides.
D) Subtract 9 on both sides.

What do you think? Check your text book.

i don't have a text book i do online school

What source materials are you supposed to use? Certainly the course you're taking suggests materials that teach the subject.

the computer it is harder to understand

Please ask your parents to help you find a textbook and a tutor. Obviously this online class is not working for you. It's your parents' responsibility to see that you are educated, but you are certainly not learning math.

To solve the equation 3x - 8/12 = 9, we need to isolate the variable x by performing a series of steps. The first step is to eliminate any addition or subtraction on the same side as the variable.

Looking at the equation, we see that there is a subtraction of 8/12 on the left side. To remove this, we need to add 8/12 to both sides of the equation.

Therefore, the correct first step in solving the problem is A) Add 8 to both sides.