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Citrus2011 [14]
2 years ago
13

Encuentre el valor de la variable en la siguiente ecuación 4−x7=−8

Mathematics
1 answer:
melisa1 [442]2 years ago
7 0

Answer:

x = 1.71428571429 (1.7)

Step-by-step explanation:

4 - 7x= -8

-4         -4

-7x = -12

/-7      /-7

x = 1.71428571429

x = 1.7

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What values of x make the equation x^2 - 18x + 81 = 0 true?
serg [7]
Answer: X=9

x^2 −2(x) (9)+9^2 =0

(X-9)^2=0

X-9=0

X=9
3 0
3 years ago
What is the answer?????​
Vlad [161]

Answer:

< 1 = 88

< 2 = 92

Step-by-step explanation:

First add 4x - 4 + 4x = 180

X = 23

4(23) - 4 = 88

4(23) = 92

3 0
3 years ago
Write an equation if the line that passes through (0,-3) and (3,3) .
liq [111]

Answer:

y = 2x - 3

Step-by-step explanation:

y = mx + b

m = (y2-y1)/(x2-x1)

m = (3-(-3))/(3-0)

m = 6/3

m = 2

y = mx + b

y = 2x + b

3 = 2(3) + b

3 = 6 + b

b = -3

therefore

y = 2x - 3

6 0
3 years ago
In the figure below, triangle JKL is isosceles, with JK LK, and triangle LMN is equilateral.
Veronika [31]

Answer:

44+

Step-by-step explanation:

just got it correct

3 0
3 years ago
Express<br><br> 2x^2+3x/(2x+3)(x-2) - 6/x^2-x-2 <br><br> As a single fraction in its simplest form.
Dmitry [639]

Answer:

(x + 3)/(x + 1) .

Step-by-step explanation:

2x^2 + 3x/(2x + 3)(x - 2) - 6 /x^2 - x - 2

= 2x^2 + 3x/(2x + 3)(x - 2) - 6 / (x - 2)(x + 1)

The LCM is (2x + 3)(x - 2)(x + 1) so we have

(2x^2 + 3x)(x + 1) - 6(2x + 3)          x( 2x + 3)(x + 1) - 6(2x + 3)

--------------------------------------- =        ------------------------------------

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


       (2x + 3)(x(x + 1) - 6)           (2x + 3)(x - 2)(x + 3)

=    ----------------------------  =       ---------------------------     =  (x + 3)/(x + 1)

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

7 0
3 years ago
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