document.write( "Question 1068314: how can i solve this equation using substitution method?
\n" ); document.write( "x+y=12
\n" ); document.write( "y=x+3
\n" ); document.write( "

Algebra.Com's Answer #683539 by Fombitz(32388)\"\" \"About 
You can put this solution on YOUR website!
Substitute the second equation into the first,
\n" ); document.write( "\"x%2B%28x%2B3%29=12\"
\n" ); document.write( "\"2x%2B3=12\"
\n" ); document.write( "Now solve for x.
\n" ); document.write( "THen go back and solve for y with either equation.
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