If 3x+1=-8, What is the value of (x+2) 3?

a - 1

b 1

c 8

d 125

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I'm pretty sure the answer is negative 3

You subtract one from both sides which gives you 3x = - 9. You divide x which gives you negative 3. Then you plug - 3 in for x for the other equation. - 3 plus 2 equals negative one and - 1 times 3 equals - 3