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Korvikt [17]
2 years ago
12

-2(x+y+2z). I need help with solving this problem

Mathematics
2 answers:
pychu [463]2 years ago
5 0

Answer:

-2x-2y-2z I think that is answer

wariber [46]2 years ago
5 0

Step-by-step explanation:

if u get the explonation pls vote me..............

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If 7 - 2x = -27, what is the value of 3x + 5?
taurus [48]

Answer: 56

Step-by-step explanation:

7-2x=-27

-2x=-34

x=17

so 3x+5=3(17)+5=56

3 0
2 years ago
Graph the line y = kx +1 if it is known that the point M belongs to it: M(1,3)
tigry1 [53]

Answer:

M(x,y) = (1,3) belongs to the line y = 2\cdot x +1. Please see attachment below to know the graph of the line.

Step-by-step explanation:

From Analytical Geometry we know that a line is represented by this formula:

y=k\cdot x + b

Where:

x - Independent variable, dimensionless.

y - Dependent variable, dimensionless.

k - Slope, dimensionless.

b - y-Intercept, dimensionless.

If we know that b = 1, x = 1 and y = 3, then we clear slope and solve the resulting expression:

k = \frac{y-b}{x}

k = \frac{3-1}{1}

k = 2

Then, we conclude that point M(x,y) = (1,3) belongs to the line y = 2\cdot x +1, whose graph is presented below.

3 0
3 years ago
65 POINTS PLEASE HELP
miskamm [114]

Answer:

        1  

= -----------

   6(x + 7)

Step-by-step explanation:

3x - 21      x^2 - 49

----------- ÷ -------------

18x - 18        x - 1

3x - 21          x - 1

----------- ×  -------------

18x - 18       x^2 - 49

Factor the top left:

3x - 21  = 3(x - 7)

Factor the bottom left:

18x - 18 = 18(x - 1)

Factor the new bottom right:

x^2 - 49 = (x + 7)(x - 7)

Multiply and simplify the faction:

3(x - 7)            x - 1

----------- ×  -----------------

18(x - 1)       (x + 7)(x - 7)

        1  

= -------------

   6(x + 7)

6 0
3 years ago
Read 2 more answers
Which number line plots the integers -12,-3,and 7 <br><br>not sure​
EleoNora [17]

Answer:

the first one I think

6 0
2 years ago
Read 2 more answers
Solve the following using the Substitution Method your work must be shown step by step: x + 2y = 2
Nat2105 [25]

Answer:

x = - 2

y = 2

Step-by-step explanation:

y = - 2 + 4

y = 2

- 2 + 2(2) = 2

- 2 + 4 = 2

8 0
2 years ago
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