2b-4=a-8

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Solution for 2b-4=a-8 equation:


Simplifying
2b + -4 = a + -8

Reorder the terms:
-4 + 2b = a + -8

Reorder the terms:
-4 + 2b = -8 + a

Solving
-4 + 2b = -8 + a

Solving for variable 'b'.

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

Add '4' to each side of the equation.
-4 + 4 + 2b = -8 + 4 + a

Combine like terms: -4 + 4 = 0
0 + 2b = -8 + 4 + a
2b = -8 + 4 + a

Combine like terms: -8 + 4 = -4
2b = -4 + a

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

Simplifying
b = -2 + 0.5a

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