-3a*7=

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Solution for -3a*7= equation: 


Simplifying
-3a * 7 = 0

Reorder the terms for easier multiplication:
-3 * 7a = 0

Multiply -3 * 7
-21a = 0

Solving
-21a = 0

Solving for variable 'a'.

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

Divide each side by '-21'.
a = 0

Simplifying
a = 0

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