# Why is it when multiply a negative by a negative together it equals a plu?

In order to understand the answer, a debt is a good example of a negative number. One common form of debt is a mortgage in which you owe the bank money because the bank paid for your house. It is also common for an employer to deduct a mortgage payment from an employee's paycheck to help the employee keep on schedule with the payments. Suppose 700 pounds is being deducted each month to pay the mortgage.We can represent removes by a negative number and figure out the answer by multiplying.-12 * - 700 pounds = 8,400 pounds. This is an illustration of a negative times a negative resulting in a positive. If one thinks of multiplication as grouping, then we have made a positive group by taking away a negative number twelve times.
Q&A Related to "Why is it when multiply a negative by a negative..."
 There are infinitely many triplets, since thre are three numbers and only two constraints upon them. http://wiki.answers.com/Q/What_3_numbers_multiplie...
 1*(-5). 5*(-1). Those are the only two whole number equations that equal (-5). If you are looking for more than just whole numbers any two numbers you can multiply to equal positive http://wiki.answers.com/Q/What_2_numbers_multiplie...
 Negative 2 and negative 36 multiplied together equal 72.-2 x -36 = 72. Remember when you multiply two negative numbers together you get a postivie number. Since 72 is an even number http://wiki.answers.com/Q/What_two_negative_number...
 -1 x 4 = -4.-1 + 4 = 3. http://wiki.answers.com/Q/What_two_numbers_multipl...
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