8a-4=-28

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Solution for 8a-4=-28 equation: 


Simplifying
8a + -4 = -28

Reorder the terms:
-4 + 8a = -28

Solving
-4 + 8a = -28

Solving for variable 'a'.

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

Add '4' to each side of the equation.
-4 + 4 + 8a = -28 + 4

Combine like terms: -4 + 4 = 0
0 + 8a = -28 + 4
8a = -28 + 4

Combine like terms: -28 + 4 = -24
8a = -24

Divide each side by '8'.
a = -3

Simplifying
a = -3

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