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Taya2010 [7]
3 years ago
15

Pleasseeeeeee hellpppppo

Mathematics
1 answer:
guajiro [1.7K]3 years ago
7 0
ITS C !!!!!!!!!!!!!!!!!!!!!
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3(2x-1)=5x+3+7x I do t get this cause I’m stupid
DiKsa [7]

Answer:

x = -1

Step-by-step explanation:

Solve for x:

3 (2 x - 1) = 7 x + 5 x + 3

Grouping like terms, 7 x + 5 x + 3 = (5 x + 7 x) + 3:

3 (2 x - 1) = (5 x + 7 x) + 3

5 x + 7 x = 12 x:

3 (2 x - 1) = 12 x + 3

Expand out terms of the left hand side:

6 x - 3 = 12 x + 3

Subtract 12 x from both sides:

(6 x - 12 x) - 3 = (12 x - 12 x) + 3

6 x - 12 x = -6 x:

-6 x - 3 = (12 x - 12 x) + 3

12 x - 12 x = 0:

-6 x - 3 = 3

Add 3 to both sides:

(3 - 3) - 6 x = 3 + 3

3 - 3 = 0:

-6 x = 3 + 3

3 + 3 = 6:

-6 x = 6

Divide both sides of -6 x = 6 by -6:

(-6 x)/(-6) = 6/(-6)

(-6)/(-6) = 1:

x = 6/(-6)

The gcd of 6 and -6 is 6, so 6/(-6) = (6×1)/(6 (-1)) = 6/6×1/(-1) = 1/(-1):

x = 1/(-1)

1/(-1) = -1:

Answer: x = -1

7 0
4 years ago
(8.1·10^−4)^2<br> Please HELP
Mandarinka [93]

The answer is 6.561×10^−7, I put the steps in the picture. Hope this helps, have a blessed day! :-)

5 0
3 years ago
A map of the Shirley has a scale of 1 cm to 110 km is the distance between Darwin and Alice Springs is 1444 km how far apart are
victus00 [196]
Its simple you just divide 1444/110 the answer you get is  13.1cm
4 0
4 years ago
(13,15) and (11,9) are the endpoints of a line segment. What is the midpoint of that line segment?
Marianna [84]
E4treargrdyhgu6++89654213
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eter
5 0
3 years ago
Simplify.<br><br> 100‾‾‾‾√<br><br> 20<br><br> 10 <br><br> −1<br><br> −25
olga_2 [115]

Answer:

10

Step-by-step explanation:

\sqrt{100} =\sqrt{(10)(10)}  = 10

 

8 0
3 years ago
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