4+12=-2*6-2*4a

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Solution for 4+12=-2*6-2*4a equation: 


Simplifying
4 + 12 = -2 * 6 + -2 * 4a

Combine like terms: 4 + 12 = 16
16 = -2 * 6 + -2 * 4a

Multiply -2 * 6
16 = -12 + -2 * 4a

Multiply -2 * 4
16 = -12 + -8a

Solving
16 = -12 + -8a

Solving for variable 'a'.

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

Add '8a' to each side of the equation.
16 + 8a = -12 + -8a + 8a

Combine like terms: -8a + 8a = 0
16 + 8a = -12 + 0
16 + 8a = -12

Add '-16' to each side of the equation.
16 + -16 + 8a = -12 + -16

Combine like terms: 16 + -16 = 0
0 + 8a = -12 + -16
8a = -12 + -16

Combine like terms: -12 + -16 = -28
8a = -28

Divide each side by '8'.
a = -3.5

Simplifying
a = -3.5

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