document.write( "Question 176238: Use linear combinations to solve the system of linear equations.
\n" ); document.write( "2v=150-u
\n" ); document.write( "2u=150-v \n" ); document.write( "
Algebra.Com's Answer #131449 by Fombitz(32388)\"\" \"About 
You can put this solution on YOUR website!
1.\"2v=150-u\"
\n" ); document.write( "2.\"2u=150-v\"
\n" ); document.write( "From eq. 1,
\n" ); document.write( "1.\"2v=150-u\"
\n" ); document.write( "Re-arrange the equation to get,
\n" ); document.write( "\"u=150-2v\"
\n" ); document.write( "Substitute this into eq. 2 and solve for v,
\n" ); document.write( "2.\"2u=150-v\"
\n" ); document.write( "\"2%28150-2v%29=150-v\"
\n" ); document.write( "\"300-4v=150-v\"
\n" ); document.write( "\"-3v=-150\"
\n" ); document.write( "\"highlight%28v=50%29\"
\n" ); document.write( "From eq. 2,
\n" ); document.write( "2.\"2u=150-v\"
\n" ); document.write( "\"2u=150-50\"
\n" ); document.write( "\"2u=100\"
\n" ); document.write( "\"highlight%28u=50%29\" \n" ); document.write( "
\n" );