document.write( "Question 126425This question is from textbook ALGEBRA 1
\n" ); document.write( ": Y=X-7
\n" ); document.write( "4X-7Y=10\r
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Algebra.Com's Answer #92683 by scott8148(6628)\"\" \"About 
You can put this solution on YOUR website!
SUBSTITUTING the value of y from the first equation into the second equation\r
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\n" ); document.write( "\n" ); document.write( "4x-7(x-7)=10 __ 4x-7x+49=10 __ -3x=-39
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