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salantis [7]
3 years ago
11

What is the value of x/(4x +7) [5(x-4)]

Mathematics
1 answer:
Anon25 [30]3 years ago
6 0

Answer:

(4x+7) [5(x-4)]

(4x+7)(5x-20)

20x^2-80x+35x-140

20x^2-45x-140

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The first side of a triangle is 3 inches shorter than the second side, and 2 inches longer than the third side. How long is each
ziro4ka [17]

Answer:

the length of the first side of the triangle is \frac{28}{3}\ in

the length of the second side of the triangle is \frac{37}{3}\ in

the length of the third side of the triangle is \frac{19}{3}\ in

Step-by-step explanation:

Let

x-----> the length of the first side of a triangle

y----> the length of the second side of a triangle

z---> the length of the third side of a triangle

we know that

x=y-3

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x=z+3

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P=x+y+z

P=28\ in

so

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substitute equation A and equation B in equation C

28=x+(x+3)+(x-3)

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28=3x

x=\frac{28}{3}\ in

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the first side of a triangle is x

x=\frac{28}{3}\ in

the second side of a triangle is y

y=\frac{28}{3}+3=\frac{37}{3}\ in

the third side of a triangle is z

z=\frac{28}{3}-3=\frac{19}{3}\ in

7 0
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Step-by-step explanation:

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