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Sveta_85 [38]
3 years ago
15

Solve the equation. 3- 5x = -9 + x

Mathematics
2 answers:
kondaur [170]3 years ago
7 0

Answer:

x = 2

Step-by-step explanation:

3 - 5x = x - 9

=  > 5x + x = 9 + 3

=  > 6x = 12

=  > x =  \frac{12}{6}  = 2

noname [10]3 years ago
3 0

Answer:

x=2

Step-by-step explanation:

-5x-x=-9-3

  -6x=-12

     x=2

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How do I calculate these division facts and what’s the answer 63 ÷ 7 56 ÷ 7
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Answer:

63 divided by 7 is 9

56 divided by 7 is 8

Step-by-step explanation:

I don't really know how to explain it, because it's kind of complicated to do it how I answered it. I will try, but what you do is write out the equation using the little line division thing with the divisor and the dividend. First for 63 divided by 7, how many times can 7 go into 6? 0, so put a 0 on top of the 6. Then, minus 6 by 0, which is 6. Then, drop down the 3 in the ones place to where the difference of the subtraction problem is, which of 6. Then, we try to find a product that is 63 or close to 63 in a multiplication problem, and one of those factors has to be 7. 7 x 9 = 63, so put a 9 on top of the 3 at the beginning and minus 63 - 63, which is 0, meaning it has no remainder. Very hard to explain digitally, look up a video for help.

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A rectangular pool is 40 feet by 20 feet. The portion of the pool that is reserved for recreational swimming is 20 ft by 10 ft.
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Total pool = 40 by 20, or 800 feet
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Solve the equation (linear equation)<br><br> <img src="https://tex.z-dn.net/?f=8%5E%7B2x%2B7%7D%20%3D%20%28%5Cfrac%7B1%7D%7B32%7
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Answer: x=-1

Step-by-step explanation:

By the negative exponent rule, you have that:

(\frac{1}{a})^n=a^{-n}

By the exponents properties, you know that:

(m^n)^l=m^{(nl)}

Therefore, you can rewrite the left side of the equation has following:

(\frac{1}{8})^{-(2x+7)}=(\frac{1}{32})^{3x}

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Rewrite:

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Then:

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As the base are equal, then:

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Solve for x:

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