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poizon [28]
3 years ago
6

198 = -4x + 2(-6x+3)

Mathematics
1 answer:
Firdavs [7]3 years ago
4 0
198=-4x+2(-6x+3), 198=-4x-12x+6, 198=-16x+6, collect the like terms, 198-6=-16x, 192=-16x, divide both sides by -16, 192/-16=-16x/-16, x=-12
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Question 9(Multiple Choice Worth 5 points) (06.01 MC) Solve the system of equations below. x + y = 8 3x + 2y = 21 (3, 5) (5, 3)
gayaneshka [121]
<h3>Answer:  B.  (5,3)</h3>

How to get this answer:

x+y = 8 solves to y = -x+8 after isolating y. You subtract x from both sides.

Plug this into the second equation and solve for x

3x + 2y = 21

3x + 2( y ) = 21

3x + 2( -x+8 ) = 21 ... replace y with -x+8

3x - 2x + 16 = 21

x + 16 = 21

x = 21-16

x = 5

Use this to find y

y = -x+8

y = -5+8

y = 3

We have x = 5 and y = 3 pair up to get the ordered pair solution (5,3)

8 0
4 years ago
Find the equation of the line that contains the point (15,22)
Svet_ta [14]

Hello from MrBillDoesMath!

Answer:

m = 0

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Discussion:

I will ignore the duplication of the point (15,22) and "y=mx+b" mentioned in this question.

A line parallel to the x axis is of the form

y = <constant>.

Since the line passes through (15,22), the above constant must be 22. That is,

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so m = 0 and b = 22


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4 years ago
Which of the following equations represent linear functions?
strojnjashka [21]

Answer:

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Step-by-step explanation:

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-8 equals x + 11 / -2
slava [35]
  • If the equation is -8=x+\frac{11}{-2}:

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Hopefully the math was self-explanatory. If it is not, please feel free to ask for a step-by-step, in depth explanation, and I will edit my answer to accommodate.

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Advocard [28]

x - intercept is were the graph intercepts the x axis the maximum is the largest y value on the graph

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