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Masja [62]
3 years ago
13

Negative three times a number plus 4 is no more than the number minus 8 find the number

Mathematics
1 answer:
elena-14-01-66 [18.8K]3 years ago
3 0

Answer:

x \geqslant 3

[3, infinity)

Step-by-step explanation:

-3n + 4 < n-8

get all of the n's to the same side

-3n + 4 < n-8

+3n + 4 < +3n-8

4 < 4n-8

send the number (-8) off to the other side

4 < 3n-8

+8< 3n +8

12 < 3n

isolate variable

12/3 < 3n/3

4 < n

so

x \geqslant 3

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