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)![]() ![]() 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( " |