document.write( "Question 182547: 2.\r
\n" ); document.write( "\n" ); document.write( "How are addition and multiplication used to solve a linear equation? Demonstrate by solving \"15x + 7 = 31 + 3x\" \r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "thank you!
\n" ); document.write( "

Algebra.Com's Answer #137022 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
How are addition and multiplication used to solve a linear equation? Demonstrate by solving
\n" ); document.write( "-----------------------------\r
\n" ); document.write( "\n" ); document.write( "\"15x + 7 = 31 + 3x\" \r
\n" ); document.write( "\n" ); document.write( "Add 15x to both sides to get:
\n" ); document.write( "7 = 31 + 18x\r
\n" ); document.write( "\n" ); document.write( "Subtract 31 from both sides to get:
\n" ); document.write( "-24 = 18x\r
\n" ); document.write( "\n" ); document.write( "Divide both sides by 18 to get:
\n" ); document.write( "x = -24/18\r
\n" ); document.write( "\n" ); document.write( "Simplify:
\n" ); document.write( "x = -4/3
\n" ); document.write( "----------
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
\n" ); document.write( "
\n" );