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LuckyWell [14K]
3 years ago
7

Solve for x. 3x-7=20

Mathematics
2 answers:
dsp733 years ago
8 0

Answer:

Solve for x: 3x - 7= 20

Step-by-step explanation:

3x - 7 = 20

3x = 20 + 7

3x = 27

3x/3 = 27/3

x = 9

notsponge [240]3 years ago
3 0

Answer:

x = 9

Step-by-step explanation:

3x - 7 = 20

3x = 20 + 7

3x = 27

x = 9

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a line intercects the points (-22,-14) and (-18,-12). what is the slope intercept equation for this line?
Nadya [2.5K]

Answer:

y = \frac{1}{2} x - 3

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

To calculate m use the slope formula

m = ( y₂ - y₁ ) / ( x₂ - x₁ )

with (x₁, y₁ ) = (- 22, - 14) and (x₂, y₂ ) = (- 18, - 12)

m = \frac{-12+14}{-18+22}  = \frac{2}{4} = \frac{1}{2}

y = \frac{1}{2} x + c ← is the partial equation

To find c substitute either of the 2 points into the partial equation

using (- 22, - 14), then

- 14 = - 11 + c ⇒ c = - 14 + 11 = - 3

y = \frac{1}{2} x - 3 ← in slope- intercept form



8 0
3 years ago
Simplify (7x2 - 2x + 9) + (3x2 + 15x – 4).
VikaD [51]

Hey! Your answer for this is

7x^2 + 3x^2 = 10x^2

-2x + 15x = 13x

9 - 4 = 5

Hence, 10x^2 + 13x + 5.

Hope this helps!

5 0
4 years ago
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If f(x) = x - 2, what is f(-1)? ​
chubhunter [2.5K]

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-f

Step-by-step explanation:

7 0
3 years ago
500 seconds equal how many Giga seconds?
Allushta [10]
1 second = <span>0.000000001 Giga seconds

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8 0
3 years ago
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Vic owns 550 shares of a company.There are 77,000 shares altogether.What fractions of tje company does Vic own?Simplify the answ
Setler [38]
We already have our numerator and denominator. All we need to do now is simplify. 

550/77000

275/3500

Vic owns 275/3500 shares of a company. 

If you need help comment below and ill try my best to help you out!

6 0
3 years ago
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