document.write( "Question 78173: I am having a hard time with negative and positive numbers. Can you please help me by simplifying this problem?\r
\n" );
document.write( "\n" );
document.write( " -(-(-7)) \n" );
document.write( "
Algebra.Com's Answer #56075 by jim_thompson5910(35256)![]() ![]() ![]() You can put this solution on YOUR website! A negative sign really tells you that you are going to use the opposite number. So if you're at 5 on the number line, then -5 means you're going to the opposite side of 5 (which is -5). So -(-5) means the opposite of -5, which is 5 (we're going back now). So in this case, we have \r \n" ); document.write( "\n" ); document.write( "-(-(-7)))\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Lets do the inside:\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "The opposite of -7 is 7 so we get: \n" ); document.write( "-(-(-7)))=-(7)=-7\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "So -(-(-7))) simplifies to -7\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "The rule is when you have 2 negatives, they make a positive (it's like they cancel out) \n" ); document.write( " |