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Leto [7]
3 years ago
13

Solve this system using the linear combination method. Show your work.

Mathematics
1 answer:
kipiarov [429]3 years ago
3 0

Answer:

Let's solve for x.

4x+2y=5

Step 1: Add -2y to both sides.

4x+2y+−2y=5+−2y

4x=−2y+5

Step 2: Divide both sides by 4.

4x

4

=

−2y+5

4

x=

−1

2

y+

5

4

Let's solve for x.

−4x−5y=7

Step 1: Add 5y to both sides.

−4x−5y+5y=7+5y

−4x=5y+7

Step 2: Divide both sides by -4.

−4x

−4

=

5y+7

−4

x=

−5

4

y+

−7

4

Answer:

x=

−5

4

y+

−7

4

Step-by-step explanation:

I hope this helps

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1)

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2)

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8 0
3 years ago
What is the answer to (8y -6
scZoUnD [109]

Answer:

Step-by-step explanation:

Incomplete presentation of question.  Did you want to factor out the greatest common factor (which is 2), obtaining 2(4y - 3)?  Or something else?  Also:  please note that if you use the left parenthesis ) , you MUST also use the right parenthesis ( .

6 0
2 years ago
What value of x would result in the numerical value of zero in the expression 7+x+(−10) ?
sergejj [24]

Answer:

x = 3

Step-by-step explanation:

So if we plug in 3 to 7+x+(-10), it simplifys to

7+3+(-10)

10+(-10)

10-10 = 0

x=3

4 0
3 years ago
Sample Response: You would graph the equation f(x) = –x + 3 for input values less than 2. There would be an open circle at the p
fgiga [73]

Answer:

Step-by-step explanation:

What did you include in your response? Check all that apply.

There would be an open circle at (2, 1).  <u>Yes</u>

There would be a closed circle at (2, 3).  <u>Yes</u>

There would be an open circle at (4, 3).  <u>Yes</u>

There would be a closed circle at (4, −4).  <u>Yes</u>

Endpoints that are not included in the domain of a particular piece of a function are represented by an open circle.  <u>Yes</u>

7 0
2 years ago
What value of a makes the equation true 30/45=6/a
rusak2 [61]
As you know 30/45 = 6/9 
So a = 9 makes the equation true


5 0
3 years ago
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