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attashe74 [19]
4 years ago
7

What is f (-4) = -2x+1

Mathematics
2 answers:
poizon [28]4 years ago
7 0
The answer is:  " -7 " .
_________________________________________________

          f(-4)  =   -2*(-4)  + 1  =  -8  +  1  =  -7  .
_________________________________________________
Vlad1618 [11]4 years ago
4 0
The answer would be 5/2 (Decimal: 2.5) I hope this helped ^^
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Answer:

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Step-by-step explanation:

Let:

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This allows us to manipulate the equations like we normally would.

2u + 3v = 13 \\ 5u - 4v =  - 2 \\  \\   + 8u + 12v = 52 \\  + 15u - 12v =  - 6 \\ 23u = 46 \\ u = 2 \\  \\ 2(2) + 3v = 13 \\ 4 + 3v = 13 \\ 3v = 9 \\ v = 3

Then, we return the values where they belong.

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Finally, we add:

\frac{1}{2}  +  \frac{1}{3}  =  \frac{3}{6}  +  \frac{2}{6}  =  \frac{5}{6}

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Step-by-step explanation:

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