document.write( "Question 700143: Hi, I was wondering there is two lines that form a perpendicular line that looks like an x and the top angle says (x+y+5) the left angle says y and the right angle says 2x. y and x+y+5 are supplementary and x+y+5 and 2x are supplementary. I already wrote out 2y+x+5=180 and then 3x+y=5=180 but I don't know how to solve it from there. \n" ); document.write( "
Algebra.Com's Answer #431814 by KMST(5328)\"\" \"About 
You can put this solution on YOUR website!
You are right.
\n" ); document.write( "The angles measuring (in degrees) \"y\" and \"x%2By%2B5\" are supplementary,
\n" ); document.write( "so \"y%2B%28x%2By%2B5%29=180\" --> \"x%2B2y%2B5=180\" as you wrote.
\n" ); document.write( "The angles measuring \"x%2By%2B5\" and \"2x\" are also supplementary,
\n" ); document.write( "so \"2x%2B%28x%2By%2B5%29=180\" --> \"3x%2By%2B5=180\" as you knew.
\n" ); document.write( "Those two equations can be simplified a bit.
\n" ); document.write( "\"x%2B2y%2B5=180\" --> \"x%2B2y=180-5\" --> \"x%2B2y=175\"
\n" ); document.write( "\"3x%2By%2B5=180\" --> \"3x%2By=180-5\" --> \"3x%2By=175\"
\n" ); document.write( "Then we would have the system of linear equations
\n" ); document.write( "\"system%28x%2B2y=175%2C3x%2By=175%29\"
\n" ); document.write( "The solution is \"highlight%28x=35%29\" with \"highlight%28y=70%29\"
\n" ); document.write( "The three angle measures would be
\n" ); document.write( "\"highlight%28y=70%29\" for the left angle,
\n" ); document.write( "\"2x=2%2A35=highlight%2870%29\" for the right angle, and
\n" ); document.write( "\"x%2By%2B5=35%2B70%2B5=highlight%28110%29\" for the top angle.
\n" ); document.write( "
\n" ); document.write( "ALTERNATE WAYS TO THE SAME SOLUTION:
\n" ); document.write( "The left and right angles are vertical angles, so they have the same measure,
\n" ); document.write( "and \"y=2x\" could be one of your equations.
\n" ); document.write( "Then your system could be
\n" ); document.write( "\"system%28y=2x%2C3x%2By=175%29\" or \"system%28x%2B2y=175%2Cy=2x%29\"
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