document.write( "Question 1101644: How do you substitution 5x+6y=-18 and y=6x-3 \n" ); document.write( "
Algebra.Com's Answer #716247 by Boreal(15235)\"\" \"About 
You can put this solution on YOUR website!
use y=6x-3 for y in the first equation.
\n" ); document.write( "It becomes 5x+6(6x-3)=-18
\n" ); document.write( "That is 5x+36x-18=-18 by distributing the 6
\n" ); document.write( "41x=0
\n" ); document.write( "x=0
\n" ); document.write( "y=-3
\n" ); document.write( "\"graph%28300%2C300%2C-10%2C10%2C-10%2C10%2C6x-3%2C-%285x%2F6%29-3%29\"
\n" ); document.write( "
\n" );