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SVEN [57.7K]
3 years ago
5

What is the value of x for the givin equation 4-2(x+7)=3(x+5)

Mathematics
2 answers:
Sergio039 [100]3 years ago
8 0

Answer:

x=-5

Step-by-step explanation:

4-2(x+7)=3(x+5)

Distribute

4 - 2x -14 = 3x +15

Combine like terms

-2x-10 = 3x+15

Add 2x to each side

-2x -10 +2x = 3x+2x+15

-10 =5x+15

Subtract 15 to each side

-10-15 =5x-15+15

-25 = 5x

Divide each side by 5

-25/5 = 5x/5

-5 =x

Elenna [48]3 years ago
5 0

Answer:

-5

Step-by-step explanation:

4-2x-14=3x+15\\-2x-10=3x+15\\-5x=25\\x=-5

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How many equal sections divide a directed line segment if it is to be partitioned with a 2:7 ratio? 2, the least number given in
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9514 1404 393

Answer:

  9, the sum of the numbers given in the ratio

Step-by-step explanation:

The reduced ratio 2 : 7 means that two parts correspond to one length and 7 parts correspond to the other length. That is, there are a total of 2+7 = 9 parts in the full length of the segment.

It is convenient to think of the line segment as being divided into 9 equal parts.

_____

<em>Additional comments</em>

It is often helpful to consider the total number of "ratio units" in a given ratio. For example, in this problem, the shorter segment is 2/9 of the whole, and the longer one is 7/9 of the whole.

It can also be useful to consider what a "ratio unit" represents. If the whole segment is 27 inches long, then each of the 9 ratio units will represent 3 inches, for example. This means the division 2:7 is 2(3 in):7(3 in) = 6 in : 21 in.

3 0
2 years ago
Please help me find the measure of the arc or angle indicated. (Angles on circles)
nata0808 [166]

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5 0
3 years ago
What is the answer?​
DochEvi [55]

Answer:

HL

Step-by-step explanation:

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4 0
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Lubov Fominskaja [6]
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=>  3x² - x² + x + 5x - 3 - 1
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8 0
3 years ago
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Illusion [34]

Answer:

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Step-by-step explanation:

17 times the sum of a number, n and 31 is 17(n+31)

and then set that equal to 300

3 0
3 years ago
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