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3 years ago

−2∣5w−7∣+9=−7 What is the 2 answers for this question

1 answer:

5 0

The two possible answers are w = 3 and w = -1/5

These answers can be obtained through solving to the absolute value symbols.

−2∣5w−7∣+9=−7 ---> subtract 9 from both sides
−2∣5w−7∣= -16 ---> divide both sides by -2
∣5w−7∣= 8

Now, because of the absolute value symbols, set the inside equal to 8 and -8 for the two answers.

5w - 7 = 8
5w = 15
w = 3

AND

5w - 7 = -8
5w = -1
w = -1/5

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3 years ago

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2 years ago

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3 years ago

the sum of two numbers is 78. one of the numbers is 4 more than the other number, what are the two numbers?

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The two numbers are 41 & 37.

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Now, we need to simplify it (combine like terms):

2x + 4 = 78

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x = 37.

So, now you know one number is equal to 37 and that the other is 37 + 4.

That's how you get 37 & 41.

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3 years ago

Read 2 more answers