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Dafna1 [17]
2 years ago
6

To solve the equation ‐2x + 5 = 9 for x, what operations must be performed on both sides of the equation in order to isolate the

variable x?

Mathematics
1 answer:
Kitty [74]2 years ago
8 0

Answer:

b.) Subtracting 5 then dividing both sides by -2

Step-by-step explanation:

Given expression:

⇒ -2x + 5 = 9

To solve this equation, first we need to remove the 5 on the left side. Then divide both sides by -2.

When done so:

⇒ -2x = 9 - 5

⇒ -2x = 4

⇒ -2x/-2 = 4/-2

⇒ x = -2

You might be interested in
Is an imaginary "line" from the Earth to the Moon a line, a ray, or a segment? and WHY?
sesenic [268]

Answer:

Segment

Step-by-step explanation:

It is a segment because it has two endpoints (the Earth and Moon). If it was a ray, it would go on forever in one direction. It doesn't, so the imaginary line is a segment.  

The first image is a segment, the second is a ray.

Hope this helps. :)

7 0
3 years ago
Si un triángulo tiene una hipotenusa de 15 cm y un cateto que mide 12 cm, ¿cual es la longitud del otro cateto?
BartSMP [9]

Answer:

   

9cm

Explicación:

El teorema de pitagoras nos dice que la hipotenusa al cuadrado es igual a la suma de los catetos al cuadrado:

c^{2} =a^{2} + b^{2}

Donde c es la hipotenusa y a  y b son los catetos.

Por lo cual, podemos reemplazar c por 15cm y a por 12cm :

15^{2} =12^{2} +b^{2}

Finalmente , debemos resolver la ecuación para b, así que b es igual a :

225=144+b^{2} \\225-144=144+b^{2} -144\\81=b^{2} \\\sqrt{81} =b\\9=b

Por lo tanto, la longitud del otro cateto es 9 cm

3 0
3 years ago
Ed bought 3 L of water 2750 mL of sports drink and 2.25 L of juice which statement is true
Leona [35]
3L is the largest quanity, 2750mL is 2nd largest, and 2.25L is the smallest. hope that helps
7 0
3 years ago
Whats the slope of the coordinates (-3, 1 ) and (2, -2)?
Varvara68 [4.7K]
The slope of these coordinates is - 3/5
4 0
3 years ago
Read 2 more answers
PLEASE HELP ITS DUE TOMORROW
Luden [163]

Answer:

4. 40 regular hours.

5. 7.3 hours of overtime

6. 40 hours x $12 = $480 regular pay

7. overtime pay was 7.3 hours x $18 = 131.40. plus the 480 = $611.40 total gross

Step-by-step explanation:

5 0
3 years ago
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