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Phoenix [80]
2 years ago
6

Solve using the substitution method. Show your work! Full credit will only be given if all steps are shown.

Mathematics
1 answer:
AnnyKZ [126]2 years ago
8 0

One of the ways to solve a system of equation is by using the substitution method

The values of x and y are -9 and 5

<h3>How to use the substitution method </h3>

The equations are given as:

2x + 6y = 12

x + y = -4

Make x the subject in the second equation

x = -4 - y

Substitute x = -4 - y in the first equation

2(-4 - y) + 6y = 12

Expand

-8 - 2y + 6y = 12

Add 8 to both sides

- 2y + 6y = 20

So, we have:

4y =20

Divide through by 4

y = 5

Recall that:

x = -4 - y

So, we have:

x = -4 - 5

x = -9

Hence, the values of x and y are -9 and 5

Read more about the substitution method at:

brainly.com/question/13476446

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F(x)= x squared -3x + 2 divided by 3x squared + 9 x -12
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Answer:

=(x-2)/3(x+4)

Step-by-step explanation:

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=x(x-2)-1(x-2)/3(x²+4x-x-4)

=(x-2)(x-1)/3{x(x+4)-1(x+4)}

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Cancelling (x-1)

We get

=(x-2)/3(x+4)

Hope it helps :)

6 0
3 years ago
A lender will make an 80% loan-to-value loan on a property that is appraised for $72,250 and sells for $73,500. If the buyer has
user100 [1]

Answer:

  $1250

Step-by-step explanation:

The loan can be made for up to ...

  0.80 × $72,250 = $57,800

For a selling price of $73,500, the amount not funded by the loan will be ...

  $73,500 -57,800 = $15,700

This is more than the buyer has saved by ...

  $15,700 -14,450 = $1,250

The buyer will need $1250 in additional funds.

3 0
2 years ago
A house costs $600 more than twelve times the lot on which it was built. If the lot cost x dollars, what did the house cost? Whi
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House=600+12lot
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house=600+12x

answer is first expresion
7 0
2 years ago
Read 2 more answers
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