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aalyn [17]
3 years ago
15

How to solve 3n-4=11

Mathematics
2 answers:
Vlad1618 [11]3 years ago
5 0
Here u go i hope this correct

IRINA_888 [86]3 years ago
3 0
3n - 4 = 11
3n - 4 + 4 = 11 + 4
3n = 15
3n / 3 = 15 / 3
n = 5

if you want to check your work, plug in 5 for n.
3(5) - 4 = 11
15 - 4 = 11
it is true, therefore n does equal 5.
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Graph <br><br> Y=-2x-3 and y=-x+6
lesantik [10]

Answer:

here ya go :)

the black line is y=-2x-3

the lavender line is y=-x+6

7 0
2 years ago
*
Yakvenalex [24]

Answer:

the answer we think is going to be 57 maybe

7 0
3 years ago
A, 4x= -28
netineya [11]

Answer:

A. x = -7, B. x = -8, C. x = 9, D. x = 2, E. x = -3

Step-by-step explanation:

A. 4x= -28

Divide both sides by 4.

\frac{4x}{4\\}=\frac{-28}{4}. x= -7

B. x- -6= -2 ->  x+6= -2

Subtraction 6 to both sides.

x- +6-6= -2-6,  x= -8

C. -x+= -9 -> x= 9

D. -3x+7=1

Subtraction 7 to both sides.

-3x+7-7 =1-7 , -3x=-6

Divide both sides by -3.

\frac{-3x}{-3} = \frac{-6}{-3}, x= 2

E. 25x+-11= -86 -> 25x-11= -86

Add 11 to both sides.

25x-11+11= -86+11, 25x= -75

Divide both sides by 25.

\frac{25x}{25} = \frac{-75}{25}, x= -3

2. 2x+9= -15

Subtraction 9 to both sides.

2x+9-9= -15-9,  2x= -24

Divide both sides by 2.

\frac{2x}{2} = \frac{24}{2} ,  x= 12

I don't think there's an answer.

I hope it helps you!

5 0
3 years ago
D is the centroid of △ABC. What is the value of x when GD=x+4 and GC=4x+5?
alexira [117]

Answer:

x = 7

Step-by-step explanation:

Because:

GD = x + 4

GC = 4x + 5

And D is the centroid of ABC

So GC = 3GD

<=> 4x + 5 = 3(x + 4)

<=> 4x + 5 = 3x + 12

<=> 4x - 3x = -5 + 12

<=> x = 7

Done!!

You ok?? :))

3 0
3 years ago
An object travels 4/5 miles in one half hour. what is its speed in miles/ hour
creativ13 [48]
<span>The object's speed is 8/5 miles per hour or 1.6 mph.</span>
6 0
3 years ago
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