document.write( "Question 712187: what is 3+(-5) on a number line \n" ); document.write( "
Algebra.Com's Answer #437813 by jim_thompson5910(35256)![]() ![]() ![]() You can put this solution on YOUR website! Start at +3 on the number line. So you are 3 units to the right of 0.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Now move 5 units to the left of +3 to go to 2, 1, 0, -1, -2\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "You'll end up at -2 when you've taken your five steps.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "So that's why 3 + (-5) = -2\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "--------------------------------------------------------------------\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Another way to think of it is 3 + (-5) is 5 - 3 (big number - small number) and then you make the answer negative because the 5 (which is bigger) is negative.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "So 5 - 3 = 2 , make this negative to get -2\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "So this is another way to find out that 3 + (-5) = -2\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |