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Bess [88]
3 years ago
15

Solve for x: -6x - 2 = 40

Mathematics
1 answer:
julia-pushkina [17]3 years ago
5 0
<span>-6x - 2 = 40
-6x = 42
x = -7
..................</span>
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Step-by-step explanation:

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I will give an easy Brainliest! Thank you! :D​
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Answer:

r (100) = 10*p (10)

Step-by-step explanation:

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A florist has 5 tulips, 15 carnations and 25 roses. If the florist wants to create identical bouquets without any leftover flowe
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5 because these numbers are all equally divisible. 
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3 years ago
What is the solution to this system of equations?
Ede4ka [16]

Answer:

First choice.

Step-by-step explanation:

You could plug in the choices to see which would make all the 3 equations true.

Let's start with (x=2,y=-6,z=1):

2x+y-z=-3

2(2)+-6-1=-3

4-6-1=-3

-2-1=-3

-3=-3 is true so the first choice satisfies the first equation.

5x-2y+2z=24

5(2)-2(-6)+2(1)=24

10+12+2=24

24=24 is true so the first choice satisfies the second equation.

3x-z=5

3(2)-1=5

6-1=5

5=5 is true so the first choice satisfies the third equation.

We don't have to go any further since we found the solution.

---------Another way.

Multiply the first equation by 2 and add equation 1 and equation 2  together.

2(2x+y-z=-3)

4x+2y-2z=-6 is the first equation multiplied by 2.

5x-2y+2z=24

----------------------Add the equations together:

9x+0+0=18

9x=18

Divide both sides by 9:

x=18/9

x=2

Using the third equation along with x=2 we can find z.

3x-z=5 with x=2:

3(2)-z=5

6-z=5

Add z on both sides:

6=5+z

Subtract 5 on both sides:

1=z

Now using the first equation along with 2x+y-z=-3 with x=2 and z=1:

2(2)+y-1=-3

4+y-1=-3

3+y=-3

Subtract 3 on both sides:

y=-6

So the solution is (x=2,y=-6,z=1).

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3 years ago
If 2x=8, then x=4<br><br> Name the property being illustrated in this expression
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2x4=8 is the expression gets the answer
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