(-4)(-7)=

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Solution for (-4)(-7)= equation:


(-4)(-7) =0

We simplify the equation to the form, which is simple to understand 
(-4)*(-7)=0

Reorder the terms in parentheses
multiplication of parentheses
(+28)=0



Remove unnecessary parentheses
+28=0

We move all terms containing  to the left and all other terms to the right. 
0=0-28

We simplify left and right side of the equation. 
0=-28

0=-28

The left and right sides are not equal, therefore there is no solution. This equation is invalid.

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