A+z=b

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Solution for A+z=b equation: 


Simplifying
A + z = b

Solving
A + z = b

Solving for variable 'A'.

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

Add '-1z' to each side of the equation.
A + z + -1z = b + -1z

Combine like terms: z + -1z = 0
A + 0 = b + -1z
A = b + -1z

Simplifying
A = b + -1z

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