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Alina [70]
3 years ago
12

How do you solve 7n + 2 = 4n + 17 ? please provide the steps on how to solve *EXTRA POINTS

Mathematics
2 answers:
Black_prince [1.1K]3 years ago
7 0

Answer:

n=5

Step-by-step explanation:

First put the like numbers on the same sides. The n on one and the numbers on the other.

7n-4n=17-2

3n=15

n=5

UkoKoshka [18]3 years ago
3 0

Answer: n=5

Step-by-step explanation:

7n + 2 = 4n + 17, so first we subtract 2 from both sides.

      -2           -2

Now the equation should look like this:

7n= 4n + 15

Now since 4n is smaller than 7n we are going to subtract 4n from both sides.

7n = 4n  +15

-4n  -4n  

Now the equation should look like this:

3n = 15

All that is left to do is divide by 3 on both sides.

3n/3 = 15/3

n = 5

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For this you will have to use the Pythagorean theory,
{a}^{2} + {b}^{2} = {c}^{2}
C is mainly the hypotenuse,
Meaning you either want to find A or B,

Since the hypotenuse has two segments, both values are 10, then just add them together making it 20,

Then 16 will be A or B, in this case it will be A,

To find a you must first move A to the other side by doing the opposite,
{b}^{2} = {c}^{2} - {a}^{2}
Now plug in the values,
{b}^{2} = {20}^{2} - {16}^{2}
{b}^{2} = 400 - 256
{b}^{2} = 144
Now just find the square root of both factors,
\sqrt{ {b}^{2} } = \sqrt{12}
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Now we want to find (d)
Since 12 is the value of the base, then divide it 2 to find (DE), after just repeat the whole process but with the value of hypotenuse 10 instead of 20 since we want to find the smaller triangle,
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Now plug in the value
{a}^{2} = {10}^{2} - {6}^{2}
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Hope this helped
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4 0
3 years ago
HELP! DUE AT 5 PM!! 10 BRAINLIST!<br><br> 3x -15x - 30 &gt; 54
ryzh [129]

Answer:x<-7

Step-by-step explanation:

3x -15x - 30 > 54

-12x-30>54

-12x<54+30    

I moved 30 from left side to right which becomes positive and > becomes <

-12x<84

-12x/-12<84/-12           I used my calculator to do this

x<-7

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