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Leokris [45]
4 years ago
14

If a = -1, b = 2, and c = 3, then a + 4b + 2c is equal to:

Mathematics
1 answer:
blondinia [14]4 years ago
6 0

Answer:

13

Step-by-step explanation:

-1+4*2+2*3

=-1+8+6

13

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4 years ago
Solve the system of equations below.<br> x + y = 5<br> -4x – 2y = -8
mel-nik [20]

Answer:

x = -1 , y = 6  

or  (-1, 6)

Step-by-step explanation:

First solve for "y" in the second equation:

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and now, use this result as a substitution for "y" in  terms of "x" in the first equation:

x+y=5\\x+(-2x+4)=5\\x-2x+4=5\\-x=5-4\\-x=1\\x=-1

Knowing the value of "x", now we place it in the substitution equation to find "y":

y=-2x+4\\y=-2(-1)+4\\y=6\\

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3 years ago
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Step-by-step explanation:

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Read 2 more answers
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Answer:

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