z-5=7

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Solution for z-5=7 equation: 


Simplifying
z + -5 = 7

Reorder the terms:
-5 + z = 7

Solving
-5 + z = 7

Solving for variable 'z'.

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

Add '5' to each side of the equation.
-5 + 5 + z = 7 + 5

Combine like terms: -5 + 5 = 0
0 + z = 7 + 5
z = 7 + 5

Combine like terms: 7 + 5 = 12
z = 12

Simplifying
z = 12

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