document.write( "Question 453366: the measure of two sides of a triangle are given. if p is perimeter, and p=10x+5y, find the measure of the third side if the other two sides are 3x+4y and 5x-y \n" ); document.write( "
Algebra.Com's Answer #311643 by ankor@dixie-net.com(22740)\"\" \"About 
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the measure of two sides of a triangle are given.
\n" ); document.write( "if p is perimeter, and p=10x+5y,
\n" ); document.write( "find the measure of the third side if the other two sides are 3x+4y and 5x-y
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\n" ); document.write( "Let the third side = c
\n" ); document.write( "The third side is the other two sides subtracted from the perimeter
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\n" ); document.write( "c = (10x+5y) - (3x+4y) - (5x-y)
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\n" ); document.write( "Remove the brackets, a minus changes the signs so we have:
\n" ); document.write( "c = 10x + 5y - 3x - 4y - 5x + y
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\n" ); document.write( "Combine like terms
\n" ); document.write( "c = 10x - 3x - 5x + 5y - 4y + y
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\n" ); document.write( "c = 2x + 2y is the 3rd side
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