8(8a-2)=-400

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Solution for 8(8a-2)=-400 equation: 


Simplifying
8(8a + -2) = -400

Reorder the terms:
8(-2 + 8a) = -400
(-2 * 8 + 8a * 8) = -400
(-16 + 64a) = -400

Solving
-16 + 64a = -400

Solving for variable 'a'.

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

Add '16' to each side of the equation.
-16 + 16 + 64a = -400 + 16

Combine like terms: -16 + 16 = 0
0 + 64a = -400 + 16
64a = -400 + 16

Combine like terms: -400 + 16 = -384
64a = -384

Divide each side by '64'.
a = -6

Simplifying
a = -6

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