z-10+z+10=180

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Solution for z-10+z+10=180 equation: 


Simplifying
z + -10 + z + 10 = 180

Reorder the terms:
-10 + 10 + z + z = 180

Combine like terms: -10 + 10 = 0
0 + z + z = 180
z + z = 180

Combine like terms: z + z = 2z
2z = 180

Solving
2z = 180

Solving for variable 'z'.

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

Divide each side by '2'.
z = 90

Simplifying
z = 90

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