Help? How do you expand this equation?

Mathematics

2 answers:

Paha777 [63]3 years ago

8 0

Multiply everything in parenthesis by the 1/6 ,. you get 3x-4

enot [183]3 years ago

4 0

1/6(18x - 24)

To expand this expression, you must use the distributive property to multiply everything inside the parentheses by 1/6. So your expression should look like this:

(1/6 * 18x) - (1/6 * 24)

Now multiply 18x and 24 by 1/6 and rewrite your expression. Your expression should look like:

(3x) - (4)

After applying the distributive property, you're finished. You've expanded your expression, so your answer to this question would be 3x - 4.

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Need help ASAP !!!!!!!

Anestetic [448]

First we distribute $\frac{1}{5}$ into $n$ and $-\frac{1}{7}$ .

$\frac{1}{5} * n = \frac{1}{5} n$
$\frac{1}{5} * -\frac{1}{7} = - \frac{1}{35}$

That makes the left side of the equation

$\frac{1}{5} n - \frac{1}{35} = \frac{1}{6} n$

Now we subtract $\frac{1}{5}n$ from $\frac{1}{6} n$ , which makes $\frac{1}{30}$

Now the equation is

$-\frac{1}{35} = -\frac{1}{30n}$

Our goal is to isolate $n$ , so we both sides by 30

$30* -\frac{1}{35} = - \frac{1}{30}n * 30$

That will make the equation

$- \frac{30}{35} = -n$

We multiply -1 on both sides of the equation:

$\frac{30}{35} = n$

Finally we simplify $\frac{30}{35}$ , which makes $\frac{6}{7}$

So the answer is $n = \frac{6}{7}$