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Elan Coil [88]
3 years ago
11

Determine the number of solutions 4x+y=-2-20x-5y=-3​

Mathematics
1 answer:
hammer [34]3 years ago
8 0

Answer:

No solution

Step-by-step explanation:

4x + y = -2

-20x - 5y = -3

<u><em>Using the Elimination method </em></u>

(4x + y = -2 ) 5

20x + 5y = -10

-20x - 5y = -10

0 = -10

No Solution

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Their sum is    x+3  +  x+5  +  x+7  =  3x + 15

But we're told that their sum is  42, so we can write

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Subtract 15 from each side:  3x         =  27

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So the three ages are  12,  14,  and  16.

The oldest child is  16  years old.

3 0
3 years ago
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Step-by-step explanation:

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3 0
3 years ago
Can somebody help me with this ?? :)
Alex777 [14]

Answer:

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Step-by-step explanation:

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Any suggestions or answers
nignag [31]
The answer to the question is d
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