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Vikentia [17]
3 years ago
9

9 = -3 + n + 2n what does n equal ?

Mathematics
2 answers:
coldgirl [10]3 years ago
5 0

Step-by-step explanation:

9=-3+n+2n

9+3=n+2n

12=3n

n=12/3

n=4

beks73 [17]3 years ago
4 0

9 =  - 3 + n + 2n

<h2>now let's flip this equation to make things easier</h2>

- 3 + n + 2n = 9

<h2>now move -3 to the other side</h2><h3>when we move -3 to the other side it turns into positive 3</h3>

n + 2n = 9 + 3

<h2>now add the values on both sides</h2><h3>n + 2n will be equal to 3n and 9 + 3 will be equal to 12</h3>

3n = 12

<h2>now move 3 to the other side</h2><h3>the multiplication sign that binded 3 and n together will change into division when moved to the other side</h3>

n =  \frac{12}{3}

<h2>when we divide 12 and 3 we will get 4</h2>

n = 4

<h2>so final answer is 4</h2>

<h3>hope that helps !</h3>
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