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Julli [10]
4 years ago
8

Help !! will mark brainliest

Mathematics
1 answer:
iren2701 [21]4 years ago
8 0

Answer:

The answer is b your welcome

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If x + 3 = 3x - 1 what is the value of x-1 ?
Allushta [10]

Answer: x=2.5, and x-1=1.5

Step-by-step explanation:

x + 3 = 3x - 1

(-x)= 3 = 2x - 1

(÷2) = 1.5 = x - 1

(+1)= 2.5 = x

8 0
3 years ago
Solve the equation 3x + 5y = 15 for y.
Naddika [18.5K]

Answer:

y=\frac{-3}{5}x+3

I don't see this in any of your choices.

Please be sure the problem and choices are as you want them to be seen by others. Thanks kindly.  

I do hope my answer is helpful.

Step-by-step explanation:

3x+5y=15

We want to get the term that contains y by itself.

This means we want to get 5y by itself first.

To do this I need to get rid of the plus 3x on that side.

I will do the inverse operation of that; I will subtract 3x on both sides.

3x+5y=15

-3x             -3x

5y=15-3x

5y=+15-3x

5y=-3x+15 since addition is commutative.

Now we have the 5y term by itself. We want the factor y in 5y by itself.

To undo multiplication you must divide.  We will divide both sides by 5:

5y=-3x+15

------------------------------

            5

\frac{5y}{5}=\frac{-3x+15}{5}

y=\frac{-3x}{5}+\frac{15}{5}

y=\frac{-3}{5}x+3

7 0
3 years ago
What is the blank?<br> Blank+(-6)+(-3)=-17
RideAnS [48]
The blank is -8 because -6 +-8=-14+-3=-17.
7 0
3 years ago
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PLEASE HELP ME I WILL GIVE BRAINLIEST
Cloud [144]

Step-by-step explanation:

I think the first equation is the correct answer

After calculating he can buy 11 laptops and 19 tablets

6 0
4 years ago
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Venus is approximately 6.7 x 10^7 miles from the Sun. If the speed of light is approximately 1.86 x 10^5miles per second, about
Aleonysh [2.5K]

Answer:

6 minutes

Step-by-step explanation:

108200,000/300,000 = 360.6 seconds or 6.0 minutes.

Mark as brainllest

(For earth it is 8.3 minutes)

3 0
3 years ago
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