b-4z=a

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Solution for b-4z=a equation: 


Simplifying
b + -4z = a

Solving
b + -4z = a

Solving for variable 'b'.

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

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

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

Simplifying
b = a + 4z

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