2+1.6a=-4

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Solution for 2+1.6a=-4 equation: 


Simplifying
2 + 1.6a = -4

Solving
2 + 1.6a = -4

Solving for variable 'a'.

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

Add '-2' to each side of the equation.
2 + -2 + 1.6a = -4 + -2

Combine like terms: 2 + -2 = 0
0 + 1.6a = -4 + -2
1.6a = -4 + -2

Combine like terms: -4 + -2 = -6
1.6a = -6

Divide each side by '1.6'.
a = -3.75

Simplifying
a = -3.75

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