8+2a-4=-12

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Solution for 8+2a-4=-12 equation:


Simplifying
8 + 2a + -4 = -12

Reorder the terms:
8 + -4 + 2a = -12

Combine like terms: 8 + -4 = 4
4 + 2a = -12

Solving
4 + 2a = -12

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 + 2a = -12 + -4

Combine like terms: 4 + -4 = 0
0 + 2a = -12 + -4
2a = -12 + -4

Combine like terms: -12 + -4 = -16
2a = -16

Divide each side by '2'.
a = -8

Simplifying
a = -8

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