a(3)=400*-8

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Solution for a(3)=400*-8 equation: 


Simplifying
a(3) = 400 * -8

Reorder the terms for easier multiplication:
3a = 400 * -8

Multiply 400 * -8
3a = -3200

Solving
3a = -3200

Solving for variable 'a'.

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

Divide each side by '3'.
a = -1066.666667

Simplifying
a = -1066.666667

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