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Travka [436]
3 years ago
14

Please Help! Show all the steps!

Mathematics
1 answer:
likoan [24]3 years ago
7 0

You can start by subtracting different equations from each other.

3x + 2y + 3z = 1

subtract

3x + 2y + z = 7

2z = -6

divide by 2

z = -3

add the following two expressions together:

3x + 2y + z = 7

3x + 2y + 3z =1

6x + 4y + 4z = 8

subtract the following two expressions:

6x + 4y + 4z = 8

5x + 5y + 4z = 3

x - y = 5

^multiply the whole equation above by 3

3x - 3y = 15

subtract the following two expressions:

3x - 3y = 15

3x + 2y = 10

-5y = 5

divide each side by -5

y=-1

take the following expression from earlier:

x - y = 5

substitute y value into above equation

x - - 1 = 5

2 negatives make a positive

x + 1 = 5

subtract 1 from each side

x = 4

Therefore x = 4, y = -1, z = -3

I checked these with all 3 equations and they worked :)

(it's quite complicated, comment if you don't understand anything) :)

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(-4,-3) hola! My friend and thanks for asking mama Sita.
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8 * 6 + (12-4) / 2 equals to what
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52

Step-by-step explanation:

Simplify the expression (Steps shown below).

4 0
2 years ago
Answer correct for brainliest!
sleet_krkn [62]

Answer:

A

Step-by-step explanation:

The equation y =1, means that y is one for any value of x.  Therefore you will get a straight horizontal line that goes through (-1,1) (0,1), (1,1), (2, 1) etc..   It will be parallel to the y-axis, but one unit up, as I have tried to illustrate below:

 

 

                           ^

                            |

                            |

                            |                y = 1

<------------------------------------------>

                            |                    x-axis

<---------------------------------------------->                

                            |              

                            |

                            |

6 0
3 years ago
The side length, s, of a cube is 4x2 + 3. If V = s^3 3 no, what is the volume of the cube?
algol13

Answer:

The answer to the above problem is 64x6 + 144x4 + 108x2 + 27. I hope it helps.

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Graph the three points. 2y=-3x+2
Alex787 [66]
<span>2y=-3x+2  |:2
y = -1.5x+1

x=0   </span>⇒   y = -1.5*0 + 1 = 1        A(0; 1)
x=2   ⇒   y = -1.5*2 + 1 = -2       B(2; -2)
x=-2  ⇒   y = -1.5*(-2) + 1 = 4     C(-2; 4)

5 0
2 years ago
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