a-1=2z-12

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Solution for a-1=2z-12 equation: 


Simplifying
a + -1 = 2z + -12

Reorder the terms:
-1 + a = 2z + -12

Reorder the terms:
-1 + a = -12 + 2z

Solving
-1 + a = -12 + 2z

Solving for variable 'a'.

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

Add '1' to each side of the equation.
-1 + 1 + a = -12 + 1 + 2z

Combine like terms: -1 + 1 = 0
0 + a = -12 + 1 + 2z
a = -12 + 1 + 2z

Combine like terms: -12 + 1 = -11
a = -11 + 2z

Simplifying
a = -11 + 2z

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