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scZoUnD [109]
3 years ago
13

-5x= -15 solve for x

Mathematics
2 answers:
cricket20 [7]3 years ago
7 0

Answer:x=3

Step-by-step explanation:

-5x=-15

divide by -5

x=3

elena55 [62]3 years ago
6 0

Answer:

x=3

Step-by-step explanation:

To solve for x, we need to get x by itself.

-5x= -15

It is being multiplied by -5. To undo this, divide both sides by -5, since division is the opposite of multiplication.

-5x/-5=-15/-5

The -5s on the left will cancel, and we are left with:

x=3

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3 0
2 years ago
The polynomial 3x2 is a with a degree of .
ZanzabumX [31]

To determine the degree of a polynomial, you look at every term:

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So, for example, the degree of 7x^{55} is 55, while the degree of xy^2z^4 is 1+2+4 = 7

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6 0
2 years ago
Read 2 more answers
Factorise:x^2-y^2-x-y​
ivanzaharov [21]

9514 1404 393

Answer:

  (x -y -1)(x +y)

Step-by-step explanation:

The expression can be factored by grouping.

  x^2 -y^2 -x -y = (x^2 -y^2) -(x +y)

  = (x -y)(x +y) -1(x +y)

  = (x -y -1)(x +y)

_____

It is useful to know that a difference of squares is factored as ...

  a^2 -b^2 = (a -b)(a +b)

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3 years ago
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Answer:

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Step-by-step explanation:

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