(7a)(-4)=

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


Simplifying
(7a)(-4) = 0

Remove parenthesis around (7a)
7a(-4) = 0

Reorder the terms for easier multiplication:
7 * -4a = 0

Multiply 7 * -4
-28a = 0

Solving
-28a = 0

Solving for variable 'a'.

Move all terms containing a to the left, all other terms to the right.

Divide each side by '-28'.
a = 0

Simplifying
a = 0

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