3 years ago

Solve the open sentence. –2 ≤ n + 4 ≤ 7

Mathematics

1 answer:

Elena-2011 [213]3 years ago

8 0

-2≤n+4≤7 subtract 4 from all terms

-6≤n≤3 or in interval notation

n=[-6,3]

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Arte-miy333 [17]

Answer:

x = 2, y= 3

Step-by-step explanation:

y = -2x+7

y = 5x-7

Since the equations are both equal to y, set them equal to each other

-2x+7 = 5x-7

Add 2x to each side

-2x+7 +2x= 5x+2x-7

7 = 7x -7

Add 7 to each side

7+7 = 7x

14 = 7x

Divide by 7

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Now find y

y = 5x-7

y = 5*2 -7

y = 10-7

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Answer:

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