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andreyandreev [35.5K]
3 years ago
6

X(x – 9)=–2x+18 helpp

Mathematics
1 answer:
nadezda [96]3 years ago
8 0
X= -2 or X=9

Distribute the x to the (x-9) and then move all the x values to one side and the constants to the other and then solve until you have x by its self. You should get two answers that work.
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Answer: y= 2x +4

Step-by-step explanation:

1. To be able to write the equation of the line, you want to be able to find the slope first. To do so, rearrange the given equation x+2y=2 into slope-intercept form, which is y=mx+b

First subtract x from both side, which will give us 2y=2-x. Rearrange this to get 2y= -x+2. Then, divide both sides by 2. This will give us y= -1/2x+1

2. Now that you have the equation, look for the slope in the new equation; this will be the m value. In this case, the slope is -1/2. Since we are looking for a line that is perpendicular, we have to change the slope so that it is the opposite reciprocal. The opposite reciprocal of -1/2 is 2, so the slope of the equation we want to find is 2.

3. Next, all we have to do is plug the given ordered pair (-5, -6) and the slope that we found (m=2) into the point-slope equation, which is y-y_{1} = m(x-x_{1} )

That will give us:

y+6 = 2(x+5)

4. Now, solve this equation.

y+6 = 2(x+5)  --> distribute the 2 inside the parentheses

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2 years ago
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Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
What is the value of x?
Serjik [45]

Answer:

  x = 32

Step-by-step explanation:

Each angle of the equilateral triangle is 60°.

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__

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7 0
3 years ago
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100 + 10x=15x. Subtract 10x from both sides. 100=5x. Divide by 5 on both sides. x=20. So you would need to buy 20 movies. 
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3 years ago
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