Question

Solve for n.

Answer 1

https://static.k12.com/bank_packages/files/media/mathml_a9f55d44a4a0538a0ab640cd45418285314415c4_1.gif

Answer 2

n=??

Answer 3

@YoungStudier

Answer 4

@TheSmartOne

Answer 5

i really need help!!!!!!

Answer 6

@pooja195

Answer 7

@aajc626

Answer 8

i really need help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answer 9

Binkey: What have you done so far? Have you seen a similar problem that you were able to solve?

Suppose that I invented the following problem: 7n = 49. How would you solve this for n? Hint: What is the opposite operation of multiplication?

Answer 10

the awnser would be 7

Answer 11

so i divide to get my awnser?

Answer 12

When given 7n = 49, absolutely yes, you divide to obtain a value for n. n = 7 is correct.

Now suppose I give you (1/8)n = 5. How would you find n?

Answer 13

i would divide

Answer 14

so -7/2 divided by 49 would equal -1/14 so is that my awnser??

Answer 15

@mathmale

Answer 16

Nope, you have it wrong. :)

Answer 17

\(\sf\Large -\frac{7}{2}n \times -\frac{2}{7} = 49 \times -\frac{2}{7}\)

Simplifying it

\(\sf\Large n = 49\times -\frac{2}{7}\)

Go ahead and simplify it more :)

Answer 18

Following up on our previous example: If you are given (-7/2)n = 49 and need to solve for n, one way (not the only way!) of doing so is to divide both sides of the equation by (-7/n). This will give you n alone on the left side. Now, as The Smart One has pointed out, you'll need to simplify the right side. 49 divided by (-7/2) is the same as 49*(-2/7). Simplify that.