document.write( "Question 701258: Linear systems word problem:
\n" ); document.write( "\"The cost of six pennants and nine balls is $48. The cost of three balls is $1 more than the cost of one pennant. What are the costs of one pennant and one ball?\"\r
\n" ); document.write( "\n" ); document.write( "I need help writing two equations and can it be solved using elimination? If not,can you solve it for me using substitution? Thanks!
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Algebra.Com's Answer #432319 by MathLover1(20850)\"\" \"About 
You can put this solution on YOUR website!

\n" ); document.write( "let the cost of pennants be \"x\" and the cost of balls \"y\":\r
\n" ); document.write( "\n" ); document.write( "if the cost of six pennants and nine balls is $\"48\" we can write it as\r
\n" ); document.write( "\n" ); document.write( "\"6x%2B9y=48\"......eq. 1\r
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\n" ); document.write( "\n" ); document.write( "if the cost of three balls is $\"1\" more than the cost of one pennant, than we write it as\r
\n" ); document.write( "\n" ); document.write( "\"3y=x%2B1\"....eq. 2\r
\n" ); document.write( "\n" ); document.write( "now we have system to solve:\r
\n" ); document.write( "\n" ); document.write( "\"6x%2B9y=48\"......eq. 1
\n" ); document.write( "\"3y=x%2B1\"....eq. 2
\n" ); document.write( "__________________________\r
\n" ); document.write( "\n" ); document.write( "start with \"3y=x%2B1\"....eq. 2 and solve for \"y\"\r
\n" ); document.write( "\n" ); document.write( "\"y=%28x%2B1%29%2F3\".....substitute it in eq. 1\r
\n" ); document.write( "\n" ); document.write( "\"6x%2B9%28x%2B1%29%2F3=48\"......solve for \"x\"\r
\n" ); document.write( "\n" ); document.write( "\"6x%2Bcross%289%293%28x%2B1%29%2Fcross%283%29=48\"\r
\n" ); document.write( "\n" ); document.write( "\"6x%2B3%28x%2B1%29=48\"\r
\n" ); document.write( "\n" ); document.write( "\"6x%2B3x%2B3=48\"\r
\n" ); document.write( "\n" ); document.write( "\"9x=48-3\"\r
\n" ); document.write( "\n" ); document.write( "\"9x=45\"\r
\n" ); document.write( "\n" ); document.write( "\"x=45%2F9\"\r
\n" ); document.write( "\n" ); document.write( "\"highlight%28x=5%29\"....the cost of pennants\r
\n" ); document.write( "\n" ); document.write( "now find \"y\"\r
\n" ); document.write( "\n" ); document.write( "\"y=%285%2B1%29%2F3\"\r
\n" ); document.write( "\n" ); document.write( "\"y=6%2F3\"\r
\n" ); document.write( "\n" ); document.write( "\"highlight%28y=2%29\"......the cost of balls\r
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