4+5a=-16

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Solution for 4+5a=-16 equation: 


Simplifying
4 + 5a = -16

Solving
4 + 5a = -16

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 + 5a = -16 + -4

Combine like terms: 4 + -4 = 0
0 + 5a = -16 + -4
5a = -16 + -4

Combine like terms: -16 + -4 = -20
5a = -20

Divide each side by '5'.
a = -4

Simplifying
a = -4

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