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Yakvenalex [24]
3 years ago
8

How do you sovle 5x-4+7x=5(2x-4)

Mathematics
2 answers:
ozzi3 years ago
6 0

Answer:

x = -8

Step-by-step explanation:

5x - 4 + 7x = 5(2x - 4)

12x - 4 = 10x - 20

<u>     +20          +20</u>

12x + 16 = 10x

<u>-12x          -12x</u>

16 = -2x

divide by -2

x = -8

otez555 [7]3 years ago
5 0

Answer:

x = -8

Step-by-step explanation:

5x - 4 + 7x = 5(2x - 4)

12x - 4 = 10x - 20

   +20          +20

12x + 16 = 10x

-12x          -12x

16 = -2x

divide by -2

x = -8

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-7 2/3 +(5 1/2) + 8 3/4 =
drek231 [11]

Answer:

6  7/12

Step-by-step explanation:

-7 2/3 +(5 1/2) + 8 3/4

Get a common denominator of 12

-7 2/3 * 4/4 +(5 1/2 +6/6) + 8 3/4*3/3

-7 8/12    + 5 6/12     + 8 9/12

Subtract the  first two terms first

They have opposite signs so subtract and take the sign of the larger

-7 8/12    + 5 6/12    = -2 2/12

-2  2/12 + 8 9/12

They have opposite signs so subtract and take the sign of the larger

-2  2/12 + 8 9/12 = 6 7/12

7 0
3 years ago
−\frac{7}{10} ÷\frac{2}{5}
bazaltina [42]
$$ −\frac{7}{10} \div\frac{2}{5}= \frac{-7}{4} $$ . totally answer. I hope helping with this answer
3 0
3 years ago
2 1 point
mafiozo [28]

Answer:

  • The graph has a minimum.
  • The graph has a y-intercept at (0, -3).
  • The solutions ... are -1 and 3.
  • The vertex is located at (1, -4).
  • In the equation, 'a' would be positive.

Step-by-step explanation:

When the graph has a low point, it has a minimum. 'a' is positive in that case. The coordinates of that low point are (1, -4). That point is the vertex.

The graph crosses the y-axis at y = -3, so the y-intercept is (0, -3).

The graph crosses the x-axis at (-1, 0) and (3, 0). These points represent the solution to the equation y = 0.

  • The graph has a minimum.
  • The graph has a y-intercept at (0, -3).
  • The solutions ... are -1 and 3.
  • The vertex is located at (1, -4).
  • In the equation, 'a' would be positive.
5 0
3 years ago
Math 7. Grade 7.
choli [55]
I love math and i believe tjat the answer to my belief is 2
7 0
4 years ago
Read 2 more answers
Find the missing term of the arithmetic sequence<br> 17,____,23
Kruka [31]

Answer:20

Step-by-step explanation:

17 + 3 = 20

20 + 3 = 23

8 0
3 years ago
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