72=180-2z

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Solution for 72=180-2z equation:


Simplifying
72 = 180 + -2z

Solving
72 = 180 + -2z

Solving for variable 'z'.

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

Add '2z' to each side of the equation.
72 + 2z = 180 + -2z + 2z

Combine like terms: -2z + 2z = 0
72 + 2z = 180 + 0
72 + 2z = 180

Add '-72' to each side of the equation.
72 + -72 + 2z = 180 + -72

Combine like terms: 72 + -72 = 0
0 + 2z = 180 + -72
2z = 180 + -72

Combine like terms: 180 + -72 = 108
2z = 108

Divide each side by '2'.
z = 54

Simplifying
z = 54

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