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DerKrebs [107]
3 years ago
8

Will give brainlist!!

Mathematics
1 answer:
weqwewe [10]3 years ago
3 0

Answer:

When an equation that has no solution, it means that the equation does not have an answer and that there is no way that the equation will be true regardless of the values given to variables or where the variables are on one side or both sides of the equation because of the way the equation was set up or constructed.

Step-by-step explanation:

For example, the following equation with variables on both sides of the equal sign that has no solution, we have;

21 + 9·x = 15+ 5·x + 4·x

21 + 9·x = 15+ 9·x

Subtracting 9·x from both sides gives;

21 + 9·x - 9·x  = 15+ 9·x - 9·x

21 + 0 = 1 5 + 0

21 = 15 (Which not true and cannot be true because 21 ≠ 15)

For example of equation with variables on one side of the equal sign has no solution, we have;

21 + 9·x - 5·x - 4·x = 15

21 + 9·x - 9·x  = 15

21 + 0  = 15

21 = 15 (Which not true and cannot be true because 21 ≠ 15).

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Answer:

  • Given and Explained Below.

Step-by-step explanation:

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<u>1st question:</u>

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<u>2nd question:</u>

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PSYCHO15rus [73]

Answer:

Step-by-step explanation:

The equation is 3x - 5y =20.  

Suppose we start with (5, y).  What value of y is a solution of this equation?

Substitute 5 for x in 3x - 5y =20, obtaining:  3(5) - 5y = 20.  

Then -5y = 5, and y = -1.  Thus, (5, -1) is a solution of 3x - 5y =20.

Next:

We have (x, 2).  Find the value of x that makes (x, 2) a solution of 3x - 5y =20.

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4 years ago
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