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Reika [66]
3 years ago
6

Which Is A Correct First Step For Solving This Equation? -5(4x-7)+8=3x

Mathematics
1 answer:
nordsb [41]3 years ago
5 0

I'm not sure if this is a multiple choice question, so I will just solve the equation.

-5 (4x - 7) + 8 = 3x

-5 (4x + (-7)) + 8 = 3x

1. Distributive Property of Multiplication

(-5)(4x) + (-5)(-7) + 8 = 3x

2. Simplify

-20x + (-35) + 8 = 3x

3. Simplify again

-20x - 27 = 3x

4. Add 27 to both sides and then subtract 3x from both sides to get all the x's by themselves on the same side

-20x - 27 + 27 = 3x + 27

-20x - 3x = 3x + 27 - 3x

5. Simplify

-23x = 27

6. Divide

-23x / -23 = 27 / -23

7. Simplify

Answer:

<h2>x = - 27/23 ≈ -1.17</h2>

Hope this helps!

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Answer:

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You cannot add those together because of the variable. Theres no way of knowing what x equals so this is as far as you can go therefor making the answer 3+2x

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Answer:

It's -39/125

Step-by-step explanation:

Rewrite the decimal number as a fraction with 1 in the denominator

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In a survey at a local university, 45% of students say that they get less than the recommended eight hours of sleep per night. I
vlabodo [156]

Answer: In a survey at a local university, 37% of students say that they get less than the recommended eight hours of sleep per night. In a group of 2200 students, how many would you expect get eight or more hours of sleep per night?

Please help ASAP!

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Answer by macston (5194) About Me  (Show Source):

You can put this solution on YOUR website!

If 37% get less than 8 hours of sleep, 100%-37%=63%

63% get 8 hours or more per night:

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ANSWER: You would expect 1386 to get 8 or more hours of sleep per night.

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   Graphical form: Equation 3%2Ax-x%2B2=4 was fully solved.

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(3x^3 - 7x^2 + 12) - (3x^3 + 6x^2 + 10x)
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