document.write( "Question 1149993: what would be the first step to solve this following system of equations using the substitution of the equation using the substitution method / 7x-3y=21 y=x+2
\n" ); document.write( " \n" ); document.write( "

Algebra.Com's Answer #771338 by ikleyn(52908) $\"\"$ $\"About$

You can put this solution on YOUR website!
.
\n" ); document.write( "

\r\n" );
document.write( "\r\n" );
document.write( "Step 1.  Using second equation, substitute y = x+2 into the first equation.\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "         You will get then\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "             7x - 3*(x+2) = 21.\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "From this point, you may continue further next steps.\r\n" );
document.write( "

\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

\n" );