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Colt1911 [192]
3 years ago
13

Solve the following equation. -8(-x-5)=40+8x

Mathematics
2 answers:
iren [92.7K]3 years ago
8 0

Answer:

all the values

Step-by-step explanation:

-8(-x-5)=40+8x\\\\-x-5=\frac{40}{-8}+ \frac{8x}{-8} \\\\-x-5=-5-x\\\\-x-5=-x-5\\\\-x=-x-5+5\\\\-x=-x+0\\\\-x=-x\\

-1(-x)=-1(-x)\\\\x=x

so all the values for x are solutions

denis-greek [22]3 years ago
7 0

Answer:

40=40 so the equation is true

Step-by-step explanation:

-8(-x-5)=40+8x

8x +40 = 40 + 8x

if you cancle out the 8x on both sides then it will be 40 = 40

therefore the equation is true and have infinite soulutions

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Write an expression that is equivalent to 30(x + y + 1)
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Answer:

30x + 30y +30

Step-by-step explanation:

4 0
3 years ago
Find an equation, or a set of equations, to describe the set of points that are equidistant from the points p(−9, 0, 0) and q(3,
wariber [46]
X = -3.  
The distance from p(-9, 0, 0) is
 d = sqrt((x+9)^2 + y^2 + z^2) 
 The distance from q(3,0,0) is
 d = sqrt((x-3)^2 + y^2 + z^2) 
 Let's set them equal to each other.
 sqrt((x+9)^2 + y^2 + z^2) = sqrt((x-3)^2 + y^2 + z^2)
  Square both sides, then simplify
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7 0
3 years ago
8x + y = 9 <br> Convert the following equations to standard form
Citrus2011 [14]

Answer:

x=1/8y+9/8    

y=<u>y=−8x+9</u>

Step-by-step explanation:

<u>Let's solve for y.</u>

<u>8x+y=9</u>

<u>Step 1: Add -8x to both sides.</u>

<u>8x+y+−8x=9+−8x</u>

<u>y=−8x+9</u>

<u />

<u>Let's solve for x.</u>

<u>8x+y=9</u>

<u>Step 1: Add -y to both sides.</u>

<u>8x+y+−y=9+−y</u>

<u>8x=−y+9</u>

<u>Step 2: Divide both sides by 8.</u>

<u>8x/8=−y+9/8</u>

<u>x=−1/8y+9/8</u>

<u />

<u />

5 0
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7 3/10 as a percentage
Harlamova29_29 [7]
7 3/10 in percent would be 7.3 \times 100 = 730%

730%

percent means over 100

So... 730% = 730/100 = 7.3
3 0
4 years ago
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