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katrin [286]
3 years ago
7

-15X - 40 = 23 - 8 This is the problem and I am totally lost

Mathematics
2 answers:
Elena-2011 [213]3 years ago
3 0
-15x-40=15
then add 40 to both sides to get the constants on 1 side and variables on the other
-15x=25
now you just divide by -15
x = -1.67 or x = -1/3
romanna [79]3 years ago
3 0
Subtract 8 from both sides
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Answer:

The angles are: 50.3 and 129.7

Step-by-step explanation:

The sum of supplementary angles is 180°.

Let x be one angle then the other angle will be x+79.4

Using the supplementary angle sum

x+x+79.4 = 180\\2x+79.4 = 180\\2x = 180-79.4\\2x = 100.6\\\frac{2x}{2} = \frac{100.6}{2}\\x = 50.3

For the measurement of 2nd angle

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Hence,

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Ostrovityanka [42]

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Now we want to get k by itself on one side. We can do this by adding 3/5 to each side.

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Step-by-step explanation:

<em>Hey there!</em>

Look at the image below↓

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