Question

Solve: 3x=12

1. 36
2. 4
3. 5
4. 3

Answer 1

its pretty east you just divde both sides by 3 to get the value of x, so since its 3x you divide it by 3 and you also do that with the other side so 12/3=4 so x=4

Answer 2

The answer is 4.

Explanation:

This is a basic one-step algebra problem.

We have: 3x = 12.

We would like find what x equals. In order to do that, we must have the x variable on one side of the equals sign, and the rest of the numbers on the other side. In other words, we have to isolate the x variable away from its coefficient.

To do this, we must divide BOTH sides of the equation by 3. This would mean that the 3 on the left side of the equals sign cancels out, totally getting rid of the 3.

Here's what it should look like:
`(3x)/(3) = (12)/(3)`

Now, we actually divide both sides now, which should look like this:
`x = 4`

This is because 3 divided by 3 is 1, and 12 divided by 3 is 4.

Hence, our solution for x is 4. Hope this helped!