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Alecsey [184]
3 years ago
13

Solve this system of linear equations. Separate

Mathematics
2 answers:
Tems11 [23]3 years ago
3 0

Answer:

(-7,-4)

Step-by-step explanation:

There are 2 different ways to solve a system of equations and the one I'm going to show you will work for all systems.  To start we will solve one of the equations for either X or Y it doesn't matter which one so I will choose the second one.  Divide both sides by negative 4 and you will have the solved equation.  x=1+2y Now we know what x equals so we can plug "1+2y" into the other equation where we see an X and we will get -8(1+2y)=24-8y and since we only have one variable now we can solve to get what Y is.  The first step is distributing -8-16y=24-8y now lets put the Y's together on one side and the numbers together on the other -32=8y and just divide both sides by 8 to get the value of Y -4=y  Now that we have Y we can plug -4 into either equation as Y to get the value of X I will use the second equation.  -4x=-4-8(-4) and solve for X -4x=-4+32  -4x=28  x=-7 So now we have x and y and we can write it as out solution (-7, -4)

I hope this helps and please don't hesitate to ask if there is anything still unclear!

Inessa05 [86]3 years ago
3 0

Answer:

(-7, -4).

Step-by-step explanation:

-8x = 24 - 8y

-4x = -4 - 8y

If we subtract them we eliminate y:

-4x = 28

x =  -7.

Substitute for x in the first equation:

8* -7 = 24 - 8y

8y =  24 + 8* -7

8y = 24  - 56

8y = -32

y = -4.

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A circular quilt is made from 113.04 square feet of fabric. How much trim is needed to go around it’s edge?
erik [133]

Hey there!

We are looking for the circumference of the circle, which is the distance around it. We are given the area, which is the radius squared times pi.

First, we need to undo the area to find our radius.

113.04/3.14=36

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3 years ago
What is the solution of the following system
AleksAgata [21]

Step-by-step explanation:

8x + 14y = 4 ...1

-6x - 7y = -10 ...2

...2 × 2 in 2 sides of the equation

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8x + 14y +(-12x -14y) = 4 +(-20)

8x + 14y - 12x -14y = 4 - 20

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x = (-16)/(-4)

= 4

replace x in ...1 or ...2 you will reserve y value

and answer in the term of (x,y)

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A line is parallel to y=3x +8 and intersects the point (-3,7). What is the equation of this parallel line?
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Answer:

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Step-by-step explanation:

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