SOLUTION: Help!! I'm actually the parent of an Algebra 1 student and I'm completely lost with helping him with this one. Here's the question. Verbatim. Take 2x and five and add them tog

Algebra ->  Absolute-value -> SOLUTION: Help!! I'm actually the parent of an Algebra 1 student and I'm completely lost with helping him with this one. Here's the question. Verbatim. Take 2x and five and add them tog      Log On


   

Question 25141: Help!! I'm actually the parent of an Algebra 1 student and I'm completely lost with helping him with this one. Here's the question. Verbatim.
Take 2x and five and add them together. Divide the result by eight. Add 3x. Subtract the quantity eight times 2x. The result is equal to 100 minus 9x. Find the value of x. Show work.
WHAT?????? Please help. I don't even know where to start.
Answer by askmemath(368) About Me  (Show Source):
You can put this solution on YOUR website!
I'll quote the question and show the steps underneath that
Take 2x and five and add them together.
2x+5
Divide the result by eight.
%28%282x%2B5%29%2F8%29
Add 3x.
%28%282x%2B5%29%2F8%29+%2B+3x
Subtract the quantity eight times 2x.
%28%282x%2B5%29%2F8%29+%2B+3x+-16x
The result is equal to 100 minus 9x.
%28%282x%2B5%29%2F8%29+%2B+3x+-16x+=+100+-9x
Simplifying %28%282x%2B5%29%2F8%29+-13x+=+100-9x
Multiplying throughout qith 8
2x%2B5+-104x+=+800-72x
Subtracting 5 on both sides
-102x+=+795+-+72x
Adding 72x on both sides
-30X+=+795
Dividing by -30 throughout
X = -26.5