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DiKsa [7]
3 years ago
6

M-4=2m how to solve this

Mathematics
2 answers:
VashaNatasha [74]3 years ago
4 0
m-4=2m \\\\-4=2m-m \\\\-2=m


Phantasy [73]3 years ago
3 0
m-4=2m\\m-2m=4\\-m=4\ \ \ \ \ \ \ \ \ \ \ \ |*(-1)\\m=-4
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How do you do this problem?
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Answer:

Step-by-step explanation:

You are going to work entirely on the right, until you can compare what is on the right with what you are given on the left.

a/1 + b/(x + 2) + c/(x - 8)

The first step is to determine the common denominator which is

(x + 2)(x - 8)

Now put each fraction over the common denominator.

<u>a(x + 2)(x - 8) + b(x - 8) + c(x + 2)</u>

             (x + 2)(x - 8)

The denominators on the left and right are the same, so you need only work with the numerators.

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In that whole expression, there is only 1 term that has an x^2 in it and that is the very first term.

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Now put a = 2 in the first three terms on the expression above

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The next thing is to get all the terms containing x together.

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======================

Now you equate the terms with no x's in them.

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-8b + 2c = - 76 + 32

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-4b + c = - 22               (y)

Subtract (y) - (x)

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-5b/-5 = - 20/-5

b = 4

==============

b + c = - 2                     Find c substitute b = 4

4 + c = - 2                     Subtract 4 from both sides

c = - 2 - 4

c = - 6      

===============  

Answer

a = 2

b = 4

c = -6

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Which of the following statements are true of the
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Answer:

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He should buy 4 boxes

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25 divided by 8 is 3.125, but you want to have enough so the least amount you can buy is 4.

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