.5a+b=c-4

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Solution for .5a+b=c-4 equation: 


Simplifying
0.5a + b = c + -4

Reorder the terms:
0.5a + b = -4 + c

Solving
0.5a + b = -4 + c

Solving for variable 'a'.

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

Add '-1b' to each side of the equation.
0.5a + b + -1b = -4 + -1b + c

Combine like terms: b + -1b = 0
0.5a + 0 = -4 + -1b + c
0.5a = -4 + -1b + c

Divide each side by '0.5'.
a = -8 + -2b + 2c

Simplifying
a = -8 + -2b + 2c

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