180=2z-30

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Solution for 180=2z-30 equation:


Simplifying
180 = 2z + -30

Reorder the terms:
180 = -30 + 2z

Solving
180 = -30 + 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.
180 + -2z = -30 + 2z + -2z

Combine like terms: 2z + -2z = 0
180 + -2z = -30 + 0
180 + -2z = -30

Add '-180' to each side of the equation.
180 + -180 + -2z = -30 + -180

Combine like terms: 180 + -180 = 0
0 + -2z = -30 + -180
-2z = -30 + -180

Combine like terms: -30 + -180 = -210
-2z = -210

Divide each side by '-2'.
z = 105

Simplifying
z = 105

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