document.write( "Question 879184: solve using substitution method
\n" ); document.write( "7x+4y=48
\n" ); document.write( "x=-4-2y \n" ); document.write( "
Algebra.Com's Answer #530570 by ewatrrr(24785)\"\" \"About 
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document.write( "Hi
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document.write( "7(-4-2y) + 4y = 48  substituting y = \"-4-2y\"
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document.write( "     -10y = 76
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document.write( "        y = -7.6  and x = 11.2  \"-4-2%28-7.6%29\"
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document.write( "Check ...
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document.write( "\"7%2A11.2+%2B+4+%28-7.6%29+=+48\"
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