z+90+75=180

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Solution for z+90+75=180 equation: 


Simplifying
z + 90 + 75 = 180

Reorder the terms:
90 + 75 + z = 180

Combine like terms: 90 + 75 = 165
165 + z = 180

Solving
165 + z = 180

Solving for variable 'z'.

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

Add '-165' to each side of the equation.
165 + -165 + z = 180 + -165

Combine like terms: 165 + -165 = 0
0 + z = 180 + -165
z = 180 + -165

Combine like terms: 180 + -165 = 15
z = 15

Simplifying
z = 15

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