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Pachacha [2.7K]
3 years ago
15

Simply each expression by combining like terms. -7W + 2W - 12W-W

Mathematics
1 answer:
tensa zangetsu [6.8K]3 years ago
3 0

Answer:

answer is in the box. I hope that helps! :)

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Evaluate the expression for s = -2.<br> -15s2 - 9-5 + s) =
Fudgin [204]

Answer:

123

Step-by-step explanation:

s=-2

-15s^2-9(-5+s)

=-15s^2+45-9s

=-15s^2-9s+45

=15(-2)^2-9×(-2)+45

=15×4+18+45

=60+18+45

=123

6 0
2 years ago
2x + 1 = 9<br> is that the answer ?
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Step-by-step explanation:

because 9-1=8/2 equals 4 so2x4+1=9

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What is a standard form equation of a circle
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Answer:

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Step-by-step explanation:

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What are the solutions of -x^2+4x=x-4
Stolb23 [73]

Answer:

x = -1 and x = 4

Step-by-step explanation:

Step 1:  Get everything to one side of the equation so it's set equal to zero..

-x² + 4x = x - 4  becomes...

  -x² + 3x + 4 = 0        (subtract x and add 4 to both sides)

    x² - 3x - 4 = 0  (divide both sides by -1, we want the x² term to be positive)

   (x - 4)(x + 1) = 0          (factor)

      so

x - 4 = 0,    then x = 4

and

x + 1 = 0,   then x = -1  

8 0
3 years ago
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