SOLUTION: Find the value of x so that the mean of {5x, 3/2x, x+9, -x} is -1 A. 2 B. 1/2 C. -1/2 D. -2 Thank you so much!!!!!!!!! God Bless and Happy New Year!!!!!

Question 389663: Find the value of x so that the mean of {5x, 3/2x, x+9, -x} is -1
A. 2
B. 1/2
C. -1/2
D. -2
Thank you so much!!!!!!!!!
God Bless and Happy New Year!!!!!
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
Previously I stated the equation was

so let's solve for x.

Start with the given equation.

Multiply both sides by 4.

Multiply

Rewrite as

Multiply EVERY term by the LCD to clear out the fraction.

Multiply and simplify.

Combine like terms on the left side.

Subtract from both sides.

Combine like terms on the right side.

Divide both sides by to isolate .

Reduce.

----------------------------------------------------------------------

Answer:

So the solution is

So the answer is choice D)

If you need more help, email me at jim_thompson5910@hotmail.com

Also, feel free to check out my tutoring website

Jim
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