a+4+2a=-8

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


Simplifying
a + 4 + 2a = -8

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

Combine like terms: a + 2a = 3a
4 + 3a = -8

Solving
4 + 3a = -8

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 + 3a = -8 + -4

Combine like terms: 4 + -4 = 0
0 + 3a = -8 + -4
3a = -8 + -4

Combine like terms: -8 + -4 = -12
3a = -12

Divide each side by '3'.
a = -4

Simplifying
a = -4

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