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If 9x-13=-31, how do you find the value of x-8?

Answer 1

Abigail Allen

#x-8=-10#

#9x-13=-31#

Add #13# to each side.

#9x=-31+13#

#9x=-(31-13)#

#9x=-18#

Divide both sides by #9#.

#x=-2#

Since we have to find the value of #x-8#, subtract 8 from each side.

#x-8=-2-8#

#x-8=-(2+8)#

#x-8=-10#

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Answer 2

Ethan Adkins

First, solve for x in the equation 9x - 13 = -31. Then, subtract 8 from the value of x you found to get the value of x - 8.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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