z-7.2=12.9

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Solution for z-7.2=12.9 equation: 


Simplifying
z + -7.2 = 12.9

Reorder the terms:
-7.2 + z = 12.9

Solving
-7.2 + z = 12.9

Solving for variable 'z'.

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

Add '7.2' to each side of the equation.
-7.2 + 7.2 + z = 12.9 + 7.2

Combine like terms: -7.2 + 7.2 = 0.0
0.0 + z = 12.9 + 7.2
z = 12.9 + 7.2

Combine like terms: 12.9 + 7.2 = 20.1
z = 20.1

Simplifying
z = 20.1

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