document.write( "Question 587049: The perimeter of a triangle is 69 cm. Side a is 5 cm shorter than side b. Side c is twice as long as side a. Find the length of each side. I need to know how to do it in 2 equations. Thanx! \n" ); document.write( "
Algebra.Com's Answer #373959 by stanbon(75887)\"\" \"About 
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The perimeter of a triangle is 69 cm. Side a is 5 cm shorter than side b. Side c is twice as long as side a. Find the length of each side. I need to know how to do it in 2 equations.
\n" ); document.write( "----------------------------
\n" ); document.write( "Equations:
\n" ); document.write( "a = b-5
\n" ); document.write( "c = 2a
\n" ); document.write( "-------
\n" ); document.write( "a + b + c = 69
\n" ); document.write( "a + (a+5) + 2a = 69
\n" ); document.write( "4a + 5 = 69
\n" ); document.write( "4a = 64
\n" ); document.write( "a = 16
\n" ); document.write( "b = a+5 = 21
\n" ); document.write( "c = 2a = 32
\n" ); document.write( "-----------
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
\n" ); document.write( "
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