.5A+4=12

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Solution for .5A+4=12 equation: 


Simplifying
0.5A + 4 = 12

Reorder the terms:
4 + 0.5A = 12

Solving
4 + 0.5A = 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 + 0.5A = 12 + -4

Combine like terms: 4 + -4 = 0
0 + 0.5A = 12 + -4
0.5A = 12 + -4

Combine like terms: 12 + -4 = 8
0.5A = 8

Divide each side by '0.5'.
A = 16

Simplifying
A = 16

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