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Brrunno [24]
3 years ago
12

Someone explain what to do Which expression is equivalent to: -2(x + 4) - (3x + 8)

Mathematics
1 answer:
n200080 [17]3 years ago
7 0

Answer:

-5x-16

Step-by-step explanation:

-2(x + 4) - (3x + 8)

Distribute -2\left(x+4\right):

=-2x-8-\left(3x+8\right)

Distribute -\left(3x+8\right):

=-2x-8-3x-8

Simplify:

=-2x-3x-8-8

=-5x-8-8

=-5x-16

Final Answer: -5x-16

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What is the solution to the equation below log7 ANSWER FAST PLEASE
Soloha48 [4]
Log7+log(x-4)=1
Subtract log 7 from both sides
Log(x-4)=1-log7
As 1-log7 = log (10/7)
Log(x-4)=log (10/7)
As bases of logs are same.
we get
x-4=10/7
Add 4 to both sides
x=10/7 + 4
simplify
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Answer: x=38/7

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3 years ago
The distance between Lincoln, NE, and Boulder, CO, is about 500 miles. The distance between Boulder, CO, and a third city is 200
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3 years ago
Plssss help what is x
makvit [3.9K]

Answer:

x = 4

Step-by-step explanation:

If you do not want to read the explanation go the the next part in bold

Ok so the shorter leg of the triangle is a radius of the circle. ( This is indicated by the point in the middle of the circle.) for the hypotenuse we are given one part of the length (2) The other part also happens to be a radius ( remember that a radius is a line that starts from the center of the triangle to any point of the circumference. ) Also remember that the radius is equal to 3. That being said the hypotenuse = 2+3 which equals 5.  

This triangle then happens to be a right triangle. ( A triangle formed by a tangent line and a radius is a right triangle.) This means that we can use the Pythagorean theorem to solve for x.

Below here is where the work is shown

a² + b² = c². where a and b = legs and c = hypotenuse. We are given the hypotenuse (5) and a leg (3) So we plug in what we are given and solve for the missing information. 5² = 3² + b²  

5² = 25

3² = 9

we would then have 25 = 9 + b²

Next we subtract 9 from each side

25 - 9 = 16

9 - 9 cancels out

Now we have 16 = b²

finally we want to get rid of the ²

To do so we take the square root of each side

\sqrt{16}=4\\\sqrt{b^2}=b\\b = 4

we're left with b = 4 which means that x = 4

8 0
3 years ago
What is 2(9x-1)+7(x+6)=-60
Harman [31]
2(9x-1)+7(x+6)=-60
Reorder the terms in parentheses
+(+18x-2)+7*(x+6)=-60
Remove unnecessary parentheses
+18x-2+7*(+x+6)=-60
Reorder the terms in parentheses
+18x-2+(+7x+42)=-60
Remove unnecessary parentheses
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We move all terms containing x to the left and all other terms to the right
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We simplify left and right side of the equation
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We divide both sides of the equation by 25 to get x
x=-100/25
x=-4
6 0
4 years ago
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