Question

Solve for x. 3x=−39 a) x=−13 b) x=−3 c) x=3 d) x=13

Answer 1

Answer: x = -13

Explanation:

We need to solve the equation
`\bf{3x=-39}` for x.

Recall that in order to solve an equation, we should isolate the variable. In this case, the variable is x.

So first, we write the given equation:
`\bf{3x=-39}`

Our next step is to divide both sides by 3.

The result is:

`\bf{x=-13}`

Therefore, x = -13.

Answer 2

So the correct answer is:

a) x = -13

This means that if we substitute -13 for x in the original equation, we will get a true statement: 3(-13) = -39.

Explanation:

To solve the equation 3x = -39 for x, we need to isolate the variable x on one side of the equation. We can do this by dividing both sides of the equation by 3.

Dividing both sides of the equation by 3, we get:

3x / 3 = -39 / 3

Simplifying, we have:

x = -13

So the correct answer is:

a) x = -13

This means that if we substitute -13 for x in the original equation, we will get a true statement: 3(-13) = -39.