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Tomtit [17]
3 years ago
7

| 2x + 9 | = 15 Help pls

Mathematics
1 answer:
ikadub [295]3 years ago
4 0

Answer:

x = 3 and x = -12

Step-by-step explanation:

To solve an absolute value equation, you create two equations, one where the right side is negated and one where the right side isn't:

| 2x + 9 | = 15 becomes:

2x + 9 = 15 and 2x + 9 = -15

2x = 6 and 2x = -24

x = 3 and x = -12

Why this works is that |-x| and |x| will both be equal to 0. Remember that absolute value is the distance a number is away from 0.

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HELP PLS 10 points, i need the filled in answers!
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Answer:  

Given : PQR is a triangle.

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Construct median PM.

⇒M is the mid point of line segment QR ( by the definition of median )

Therefore, QM\cong MR (By the definition of mid point)

PQ\cong PR (given)

PM \cong PM( reflexive)

Thus, By SSS congruence postulate,

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3 years ago
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Vaselesa [24]

Answer:

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Step-by-step explanation:

I'm not sure whether or not I understood this problem correctly, but I tried my best. Try to make your questions more clear in the future.

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Step-by-step explanation:

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Step-by-step explanation:

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