document.write( "Question 1161840: Solve by substitution: \r
\n" ); document.write( "\n" ); document.write( "y=(5/8)x+4
\n" ); document.write( "16y+3x=-40
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Algebra.Com's Answer #785525 by Alan3354(69443)\"\" \"About 
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y=(5/8)x+4
\n" ); document.write( "16y+3x=-40
\n" ); document.write( "-----------
\n" ); document.write( "Sub for y in the 2nd eqn
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\n" ); document.write( "Multiply the 1st eqn by 16 to avoid fractions:
\n" ); document.write( "16y = 10x + 64
\n" ); document.write( "16y + 3x = -40
\n" ); document.write( "--
\n" ); document.write( "Then sub for 16y in the 2nd eqn
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