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DENIUS [597]
3 years ago
6

3x - 7y = -28 for y do I solve this equation differently than any other one?

Mathematics
1 answer:
seraphim [82]3 years ago
8 0
3x - 7y = -28
-3x -3x
-7y = -3x -28
___ ______
-7 -7
y = -3/7x +4
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Seperate the number 53 into 3 parts so that the second number is 3 less than the first number and the third number is twice the
irga5000 [103]
Hello,

Let a the first, b the second and c the third.
a+b+c=53
b=a/3
c=2a
==>a+a/3+2a=53
==>10a/3=53
==>a=15.9
c=2*a=2*15.9=31.8
b=a/3=15.9/3=5.3

Proof: a+b+c=15.9+5.3+31.8=53

The second number is 5.3
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3 years ago
Divide x cubed minus 3 x squared minus 10 x + 24 by x minus 2. Step 1 - Fill in the missing number: A vertical line and horizont
wariber [46]

The value of k is 2 if the polynomial x³ - 3x² - 10x + 24 is divided by the expression (x - 2).

<h3>What is synthetic division?</h3>

In the case of dividing by a linear factor, the synthetic division is a shorthand, or quicker, a technique of polynomial division.

The question is attached to the picture please refer to the picture.

We have a polynomial:

x³ - 3x² - 10x + 24

Which is divided by (x - 2)

We can divide using the synthetic division:

The first row: 1   -3   -10   24

The entry outside the row: 2

The missing value which is 2

k = 2

Thus, the value of k is 2 if the polynomial x³ - 3x² - 10x + 24 is divided by the expression (x - 2).

Learn more about the synthetic division here:

brainly.com/question/11850611

#SPJ1

6 0
1 year ago
X+5-8x=26<br> Solve for x
salantis [7]
X = -3 

Pull out the like terms: -7x - 21 = -7 × ( x + 3) 

Solve: -7 = 0 

Solve: x + 3 = 0

Subtract 3 from both sides of the equation 

So, x = -3
 
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3 years ago
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stepan [7]

Answer:

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2 years ago
If f(x)=-3x-2, find f(-2)+9
mash [69]

Answer:

13

Step-by-step explanation:

Replace the variable x with -2 in the expression.

f (-2) = -3 x -2 -2

Simplify (-3 x -2 -2) + 9

Multiply -3 by -2

6 - 2 + 9

Subtract 2 from 6

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add 4 and 9

13.

4 0
2 years ago
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