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Dafna11 [192]
2 years ago
7

7(3x-1)-6(2x+3)=8(x-2)+1​

Mathematics
2 answers:
Vitek1552 [10]2 years ago
5 0

Answer:

X equals 10

hope this help you out

Fed [463]2 years ago
5 0

Answer:

x=10

Step-by-step explanation:

7\left(3x-1\right)-6\left(2x+3\right)=8\left(x-2\right)+1

7\left(3x-1\right)-6\left(2x+3\right)

<u>Expand, using Distributive law:</u>

<u />7\left(3x-1\right)

  • 21x-7

____________

-6\left(2x+3\right)

  • -12x-18

_____________

8\left(x-2\right)+1

  • 8x-16+1
  • -16+1=-15
  • 8x-15

______________

21x-7-12x-18

<u>Combine like terms:</u>

<u />9x-25

9x-25=8x-15

<u>Add 25 to both sides:</u>

<u />9x-25+25=8x-15+25

9x=8x+10

<u>Subtract 8x from both sides:</u>

<u />9x-8x=8x+10-8x

x=10

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

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PLEASE HELP I've tried everything 30 points!
Luda [366]

Answer:

(x+2)1x-8)=0

x=-2 or x=8

Step-by-step explanation:

The given quadratic expression is

2 {x}^{2}  - 12x - 32

We equate this expression to zero to get:

2 {x}^{2}  - 12x - 32 = 0

Let us divide through by 2 to get:

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Split the middle term to get:

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Factor

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Factor further to get

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The solution are

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2 years ago
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Answer:

Step-by-step explanation:

From the picture attached,

                 Statements                                        Reasons

1). In ΔABC, DE intersects AB and AC  1). Given

2). DE║BC                                              2). Given

3). ∠ADE ≅ ABC                                    3). Corresponding angles postulate

4). ∠AED ≅ ∠ACB                                 4). Corresponding angles postulate

5). ΔADE ~ ΔABC                                  5). AA similarity postulate

6). \frac{AD}{AB}=\frac{AE}{AC}                                           6). Definition of two similar triangles

Hence proved.  

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