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crimeas [40]
3 years ago
12

6(r-4)-5(r-1)=2(r+6) r=?

Mathematics
2 answers:
grandymaker [24]3 years ago
8 0

Answer:

r = -31

Step-by-step explanation:

The picture is how I solved it.

dedylja [7]3 years ago
8 0

Answer: r=-31

Step-by-step explanation:

To find r, we want to use algebraic properties to isolate r.

6(r-4)-5(r-1)=2(r+6)             [distribute]

6r-24-5r+5=2r+12             [combine like terms]

r-19=2r+12                          [subtract both sides by 2r]

-r-19=12                               [add both sides by 19]

-r=31                                    [divide both sides by -1]

r=-31

Now, we know that r=-31.

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The values are x=8 and y=10

Explanation:

From the figure, we can see that the two quadrilaterals are similar.

Thus, by the property of quadrilateral, for similar quadrilaterals, their corresponding angles and sides are congruent. Thus, we have,

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Also, GF = QR and DE = PS

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Hence, to determine the value of x for the side QR, we have,

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Thus, we have,

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68=6y+x\\68=6y+8\\60=6y\\10=y

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