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LenaWriter [7]
3 years ago
8

Step by step explanation

Mathematics
1 answer:
vodka [1.7K]3 years ago
4 0

Answer: x = 4 and y = -3

Step-by-step explanation:

2x + 4y = -4

2x = -4 - 4y

x = -2 - 2y

Now that we have solved the first equation for x, we plug (-2 - 2y) into the other equation in place of x and then solve for y.

3(-2 -2y) + 5y = -3

-6 - 6y + 5y = -3

-y = 3

y = -3

Now that we know y, we plug it into the original equation and solve for x.

2x + 4(-3) = -4

2x + -12 = -4

2x = 8

x = 4

You can check the answer by plugging both x and y into either of the original equations.

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Is the expression 3^2 ^3 equivalent to 3^3 ^2<br> explain.
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Answer:

no

Step-by-step explanation:

because they have 2 different answers

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2 years ago
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Complete these ordered pairs for this equation. (0, ), (-2, ), (4, ) y=2x
quester [9]

Answer:

Part 1) The ordered pair is (0,0)

Part 2) The ordered pair is (-2,-4)

Part 3) The ordered pair is (4,8)

Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form y/x=k or y=kx

In a proportional relationship the constant of proportionality k is equal to the slope m of the line and the line passes through the origin

In this problem we have a direct variation

y=2x

Complete the ordered pairs

Part 1) we have (0,?)

For x=0

Substitute in the equation and solve for y

y=2(0)=0

therefore

The ordered pair is (0,0)

Part 2) we have (-2,?)

For x=-2

Substitute in the equation and solve for y

y=2(-2)=-4

therefore

The ordered pair is (-2,-4)

Part 3) we have (4,?)

For x=4

Substitute in the equation and solve for y

y=2(4)=8

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3 years ago
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Answer:

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svetlana [45]

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y=-3x+5

Step-by-step explanation:

y=mx+b

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Add your points

(2, -1)

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2 years ago
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