SOLUTION: One positive number is 10 times another number. The difference between the two numbers is 81, find the numbers.

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Question 707688: One positive number is 10 times another number. The difference between the two numbers is 81, find the numbers.
Answer by Stitch(470) About Me  (Show Source):
You can put this solution on YOUR website!
Equation 1: A+=+10B
Equation 2: A+-+B+=+81
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Since equation 1 is already solved for A, plug 10B into equation 2 for A
Equation 2: A+-+B+=+81
%2810B%29+-+B+=+81
Combine like terms
9B+=+81
Divide both sides by 9
highlight%28B+=+9%29
Now plug 9 into equation 1 for B
Equation 1: A+=+10B
A+=+10%2A%289%29
highlight_green%28A+=+90%29