document.write( "Question 10500: a+b=10.6
\n" ); document.write( "a+c=8.5
\n" ); document.write( "b+c=8.1
\n" ); document.write( "how much are a, b, c worth?\r
\n" ); document.write( "\n" ); document.write( "Please help .8th grade
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Algebra.Com's Answer #5569 by Earlsdon(6294)\"\" \"About 
You can put this solution on YOUR website!
You can solve this sytem of equations by the substution method.\r
\n" ); document.write( "\n" ); document.write( "1) a + b = 10.6 or b = 10.6 - a
\n" ); document.write( "2) a + c = 8.5 or c = 8.5 - a
\n" ); document.write( "3) b + c = 8.1 Substitute the two above equations for b and c, then solve for a.\r
\n" ); document.write( "\n" ); document.write( " (10.6 - a) + (8.5 - a) = 8.1 Simplify and solve for a.
\n" ); document.write( "10.6 + 8.5 - 2a = 8.1 Add 2a to both sides.
\n" ); document.write( "19.1 = 8.1 + 2a Subtract 8.1 from both sides.
\n" ); document.write( "2a = 11 Divide both sides by 2
\n" ); document.write( "a = 5.5\r
\n" ); document.write( "\n" ); document.write( "b = 10.6 - a
\n" ); document.write( "b = 10.6 - 5.5
\n" ); document.write( "b = 5.1\r
\n" ); document.write( "\n" ); document.write( "c = 8.5 - a
\n" ); document.write( "c = 8.5 - 5.5
\n" ); document.write( "c = 3\r
\n" ); document.write( "\n" ); document.write( "a = 5.5
\n" ); document.write( "b = 5.1
\n" ); document.write( "c = 3
\n" ); document.write( "
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