50 added to three times an unknown number equals -11?

Hello there!

An equation to model this situation is 3n - 50 = -11

The unknown number has a value of 13.

Okay, so let's start by breaking down the question - we'll use n to model the unknown number.

-50 added to three times an unknown number equals -11?

This means we are adding -50 to something else. (We can use + -50 or - 50 since they are the same thing, I'll use - 50 since it's easier to follow.)

-50 added to three times an unknown number equals -11?

This phrase can be modeled as 3n. This is what we are taking 50 from, so we can add that to the end of the equation so far.

3n - 50

-50 added to three times an unknown number equals -11?

This can means the equation equals -11. We can model it as = -11. Now, let's add it to our equation.

3n - 50 = -11

Now, solve for n.

You want to start by canceling -50 out on the left side, so n is on it's own side, and to do this you add 50 to both sides.  

3n - 50 + 50 = -11 + 50

3n = 39

To finish isolating n, divide both sides of the equation by 3.

3÷3n = 39÷3

n = 13.

I hope this helps and have a great day!

answer: -1

step-by-step explanation:

the simplified form is

step-by-step explanation:

we want to simplify the expression,

let us change the middle bar to a normal division sign to obtain,

we multiply the first fraction by the reciprocal of the second fraction to obtain,

we factor to obtain,

we cancel the common factors to get,

we simplify to get,

the correct answer is b