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charle [14.2K]
3 years ago
5

3 x + 4 = 31 ecuación de primer grado ayuda!

Mathematics
1 answer:
Elis [28]3 years ago
4 0

Answer:

9

Step-by-step explanation:

31-4= 27

27/3 = 9

3(9)+4=31

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can someone please tell me how to do 2x=3y and 4x-3y=12 using substitution to solve the system of equations.
maw [93]

Answer:

Step-by-step explanation:

you divide the two to the y, which is x=3/2y

then, you simplify the second equation to y, which is -3y= -4x+12

then, you substitute the x=3/2y into the second equation,

-3y = -6+12

-3y = 6

y = -2

Substitute the y into the first equation, x= 3/2y,

x = -3

5 0
3 years ago
PLEASE HELP ILL DO ANYTHING
yuradex [85]

Answer:

B) 2 1/4

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
10,000 times 100,00 help please
katovenus [111]

Answer:1,000,000

Step-by-step explanation:THERE U GO :)

6 0
2 years ago
Subtract 7 from the product of 4 and a number results in the number added to 29 is what
german
4x-7=29 < do you understand how to set that up? Now, the goal is to “get x by itself.”

4x-7=29< now add the 7 to the 29. When you cross an equals sign you change the (+/-) sign of the number you’re moving.

4x= 36< now you will just divide by 4 on both sides. This will give you x by itself on the left side of the equals sign.

x=36/4 which is 9

X=9 :))
7 0
3 years ago
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The cost of manufacturing x refrigerators is given by the function f(x)=2x^2+6000. If the cost doubles fr the year 2011 owing to
Alecsey [184]

Answer:  Vertical Stretch

Step-by-step explanation:

Given: The cost of manufacturing x refrigerators is given by the function :f(x)=2x^2+6000

If the cost doubles fr the year 2011 owing to higher raw material prices, then we multiply the given function by 2, then we get a new function :

g(x)=2(2x^2+6000)=4x^2+12000 which represents a vertical stretch in the graph.

∵ 2 is a positive constant  greater than 1 which is multiplied to the parent function f(x). So by the definition of vertical stretch the parent function will be vertically stretched .  

6 0
3 years ago
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