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Jet001 [13]
3 years ago
10

Can someone help me please ​

Mathematics
1 answer:
lakkis [162]3 years ago
7 0

Answer:

14c + 21d - 42

Step-by-step explanation:

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Step-by-step explanation:

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Can someone please help me solve this? <br><br> 2x+5y=-1 <br><br> -10x-25y=5
fredd [130]

this is system of equations

2x + 5y = -1   times this one by 5 to make the y's opposite

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__________

0 + 0       = 0    

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3 0
4 years ago
Which of the following points are solutions to the system of inequalities shown below?
vlada-n [284]
The following solutions to the given system of inequalities shown above would be option c : (-3, -5) option d : (0, 4)  option e. (4, 4)  and option f. <span>(2, -1) 
So how did I know the answer. To check this, you just have to substitute the values.
For example let us take option c (-3, -5)
y </span><span><  3x + 5
-5 </span><span><  3(-3) + 5
-5 </span><span><  -9 + 5
-5 </span><span><  -4 <<You see that -4 is greater than -5 which makes this inequality correct. This is the same process as with the other correct options.
Hope that this answer helps.</span>
7 0
4 years ago
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