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yaroslaw [1]
3 years ago
9

What is the answer for this equation? -2(3x+10)+14x=28

Mathematics
2 answers:
azamat3 years ago
8 0

Answer:

x= 6

Step-by-step explanation:

Distribute -2 into the parenthesis.

-6x+(-20)+14x= 28

The negative sign cancels out the addition sign,

-6x-20+14x= 28

Add the variables together.

(-6x+14)

8x-20= 28

Add 20 to both sides.

8x-20= 28

  +20 +20

Divide to both sides.

<u> 8x</u>= <u>48 </u>

2       2

x= 6

Alik [6]3 years ago
7 0

x=6 hi hope this helps.

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Please help me solve this for 15 points! <br><br>-x2 + 4x - 54 = 0​
Mazyrski [523]

Answer:

x1 =2-5i*sqrt(2)

x2 =2+5i*sqrt(2)

Step-by-step explanation:

-x^2 +4x-54=0 (quadratic equation)

a=-1, b=4, c=-54

x1=(-b+sqrt(b^2-4ac))/2a

x1=(-4+sqrt(4^2 - 4*(-1)(-54))/2*(-1)

x1=(-4+sqrt(16-216))/(-2)

x1 =(-4+sqrt(-200))/(-2)

x1 =(-4+sqrt(200i^2))/(-2) i^2=-1

x1 =(-4+sqrt(100*2*i^2))/(-2)

x1 =(-4+10i*sqrt(2))/(-2)

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x2 =(-b-sqrt(b^2-4ac))/2a

x2 =(-4-10i*sqrt(2))/(-2)

x2 =2+5i*sqrt(2)

7 0
3 years ago
Read 2 more answers
Which of the following best describes the equation below?
DanielleElmas [232]

Answer:

B

Step-by-step explanation:

3x+33+6x=9x-33

9x+33=9x-33

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no solution

7 0
2 years ago
My question is 7/8*8/9
Tom [10]
7/8*8/9 = (7*8)/(8*9)
Since we have an 8 both above and below, we can erase it, and so the answer is 7/9
6 0
3 years ago
What is the average of the following numbers: 18, 64, 23, 78, 82, 91
Katen [24]
To Find The Answer, We Need To Add All Of Them Together, Then Divide By the Number Of Values. So:
64+23+78+82+91
-----------------------
             5

<span>64+23+78+82+91 = 338.
</span>
338
-----
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338/5 = 67.6

So, The Average Is 67.6
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3 years ago
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Eddi Din [679]

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P (picking a green ball) = 3/8

♥️Mark as brainliest♥️

5 0
3 years ago
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