document.write( "Question 295209: I am struggling with some of these problems please help\r
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\n" ); document.write( "\n" ); document.write( "Solve each system by substitution:\r
\n" ); document.write( "\n" ); document.write( "(b) y = 13x + 14
\n" ); document.write( " x = y - 1\r
\n" ); document.write( "\n" ); document.write( "John
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Algebra.Com's Answer #212777 by richwmiller(17219)\"\" \"About 
You can put this solution on YOUR website!
john, some website rules
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\n" ); document.write( "\n" ); document.write( "(b) y = 13x + 14
\n" ); document.write( " x = y - 1
\n" ); document.write( "plug in y-1 for x in the first equation to get
\n" ); document.write( "y=13*(y-1)+14
\n" ); document.write( "y=13y-13+14
\n" ); document.write( "y=13y+1
\n" ); document.write( "-12y=1
\n" ); document.write( "y=-1/12
\n" ); document.write( "x=y-1
\n" ); document.write( "x=-1/12-1
\n" ); document.write( "x=-13/12
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