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ioda
3 years ago
13

Solve the following equation, and check your solution. Be sure to show all work {please :)}

Mathematics
1 answer:
oksano4ka [1.4K]3 years ago
8 0

Answer:

n=250

Step-by-step explanation:

So we have the equation:

-17+\frac{n}{5}=33

And we need to solve for n.

First, let's isolate the n variable. To do so, let's add 17 to both sides:

(-17+\frac{n}{5})+17=(33)+17

The left side cancels. Add on the right:

\frac{n}{5}=50

Now, let's multiply both sides by 5:

5(\frac{n}{5})=5(50)

The left side cancels again. Multiply on the right:

n=250

So, our solution is 250.

And we're done!

Checking:

Substitute 250 back for n:

-17+\frac{250}{5}\stackrel{?}{=}33

Divide first:

-17+50\stackrel{?}{=}33

We can rewrite this as:

50-17\stackrel{?}{=}33

Subtract:

33\stackrel{\checkmark}{=}33

This is indeed correct!

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3 years ago
Simplify 12edf – 13def. State a property that you can use.
Anna [14]

Answer:

-def. In multiplication, the order doesn't matter.

Step-by-step explanation:

A crucial property you can use to simplify this is the fact that, in multiplication, order doesn't matter.

3 * 2 = 6

2 * 3 = 6

5 * 2 * 3 = 30

2 * 3 * 5 = 30

3 * 2 * 5 = 30

Thus,

edf, or

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d * e * f

e * d * f = d * e * f

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Thus, 12edf is the same as 12def. We can put this in our expression:

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5 0
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