document.write( "Question 548217: a=b+3
\n" ); document.write( "a=-4b-2
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Algebra.Com's Answer #356792 by mathie123(224)\"\" \"About 
You can put this solution on YOUR website!
\"a=b%2B3\"
\n" ); document.write( "\"a=-4b-2\"\r
\n" ); document.write( "\n" ); document.write( "We need to find a value for a and b that makes both these statements true.
\n" ); document.write( "We can set a=a (substitution method) and get
\n" ); document.write( "\"b%2B3=-4b-2\"
\n" ); document.write( "\"b%2B3-3%2B4b=-4b-2-3%2B4b\"
\n" ); document.write( "\"b%2B4b=-2-3\"
\n" ); document.write( "\"5b=-5\"
\n" ); document.write( "\"5b%2F5=-5%2F5\"
\n" ); document.write( "\"b=-1\"\r
\n" ); document.write( "\n" ); document.write( "And now substituting this value of b into either of the original equations (I will put it into a=b+3, but you will end up with the same thing which every route you take). \r
\n" ); document.write( "\n" ); document.write( "\"a=b%2B3\"
\n" ); document.write( "\"a=-1%2B3\"
\n" ); document.write( "\"a=2\"
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