document.write( "Question 448056: I keep getting confused when subtracting negative #'s! It is driving me crazy! What is 3- -4? Why? \n" ); document.write( "
Algebra.Com's Answer #308386 by algebrahouse.com(1659)![]() ![]() You can put this solution on YOUR website! Whenever you have \"minus a negative\" back to back, that becomes \"plus\"\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "3 - (-4) \n" ); document.write( "= 3 + 4 {minus a negative becomes plus} \n" ); document.write( "= 7\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "5 - (-3) \n" ); document.write( "= 5 + 3 {minus a negative becomes plus} \n" ); document.write( "= 8\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "-3 - 4 \n" ); document.write( "= -7 {just add 3 and 4 and put a negative in front}\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "3 - 4 \n" ); document.write( "= -1 {imagine standing on 3, on the number line, and moving 4 to the left} \n" ); document.write( "www.algebrahouse.com \n" ); document.write( " |