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Oxana [17]
4 years ago
6

Solve for x using the distributive property. 9(5 - x) = 81 x = [?]

Mathematics
1 answer:
Ilya [14]4 years ago
8 0

Answer:

\boxed {x = -4}

Step-by-step explanation:

Solve for the value of x:

9(5 - x) = 81

-Use <u>Distributive Property</u>:

9(5 - x) = 81

45 - 9x = 81

-Subtract 45 to both sides:

45 - 45 - 9x = 81 - 45

-9x = 36

-Divide both sides by:

\frac{-9x}{-9} = \frac{36}{-9}

\boxed {x = -4}

So, the value of x is -4.

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What is y-intecept y=6x-4
Dmitry_Shevchenko [17]
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b: y -intercept

so the y intercept is -4 or (0,-4) as a coordinate
7 0
3 years ago
Read 2 more answers
What is the solution to the following system?
GalinKa [24]

Answer:

<em>(2, - 6, 3)</em><em> </em>

Step-by-step explanation:

2x - y - 3z = 1 ⇒ y = 2x - 3z - 1 .... <em>(1)</em>

4x + 3y + 2z = - 4 .... <em>(2)</em>

- 3x + 2y + 5z = - 3 .... <em>(3)</em>

(1) ---> (2) and (3)

4x + 3(2x - 3z - 1) + 2z = - 4 ⇔ 10x - 7z = - 1 ... <em>(4)</em>

- 3x + 2(2x - 3z - 1) + 5z = - 3 ⇔ x - z = - 1 ⇒ x = z - 1 ---> (4)

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<em>(2, - 6, 3)</em>

5 0
3 years ago
Write a linear function that passes through (1,5) and (2,15)
Leokris [45]
Simple,

using \frac{y1-y2}{x1-x2} =m (slope)

find your slope...

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Now, using y=mx+b to find your equation, plug in what you know...

Use any of the 2 coordinates.. (1,5)

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5 0
4 years ago
Anita purchased a couch that was priced at $700. She will also have to pay 6% sales tax. How much will she pay in total for the
Zolol [24]

Answer:

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Step-by-step explanation:

To solve this, you need to figure out what 6% of 700 dollars is and then add that to 700. The easiest way to find the percentage of a number is to set it up in the equation:

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6 0
3 years ago
Find the slope:<br> (2,7) and (5, 12)
Setler [38]

Answer:

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Step-by-step explanation:

SLOPE: get the difference of each coordinate and divide them.

two points: A(2,7) and B(5,12)

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now we divide dy/dx:

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that's the slope

3 0
4 years ago
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