-a+4=a+b

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Solution for -a+4=a+b equation:


Simplifying
-1a + 4 = a + b

Reorder the terms:
4 + -1a = a + b

Solving
4 + -1a = a + b

Solving for variable 'a'.

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

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

Combine like terms: -1a + -1a = -2a
4 + -2a = a + -1a + b

Combine like terms: a + -1a = 0
4 + -2a = 0 + b
4 + -2a = b

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

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

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

Simplifying
a = 2 + -0.5b

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