document.write( "Question 10314: I need to know how to get to the answer which is 7. Thank you! :-)
\n" );
document.write( "-[2z - (5z + 2)] = 2 + (2z + 7) \n" );
document.write( "
Algebra.Com's Answer #5474 by rapaljer(4671)![]() ![]() You can put this solution on YOUR website! To avoid confusion, remove the parentheses first, working the problem on the inside of the brackets first.\r \n" ); document.write( "\n" ); document.write( "-[2z - (5z+2)] = 2 + (2z +7) \n" ); document.write( "-[2z - 5z - 2] = 2 + 2z + 7\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Combine like terms: \n" ); document.write( "-[-3z - 2] = 9 + 2z\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Now remove the brackets, the same as parentheses: \n" ); document.write( "3z + 2 = 9 + 2z\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Get the variables all on the left side by subtracting 2z from each side: \n" ); document.write( "3z - 2z + 2 = 9 + 2z - 2z \n" ); document.write( "z + 2 = 9\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Subtract 2 from each side: \n" ); document.write( "z + 2 - 2 = 9 - 2 \n" ); document.write( "z = 7\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "R^2 at SCC \n" ); document.write( " |