285=3z-78

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Solution for 285=3z-78 equation:


Simplifying
285 = 3z + -78

Reorder the terms:
285 = -78 + 3z

Solving
285 = -78 + 3z

Solving for variable 'z'.

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

Add '-3z' to each side of the equation.
285 + -3z = -78 + 3z + -3z

Combine like terms: 3z + -3z = 0
285 + -3z = -78 + 0
285 + -3z = -78

Add '-285' to each side of the equation.
285 + -285 + -3z = -78 + -285

Combine like terms: 285 + -285 = 0
0 + -3z = -78 + -285
-3z = -78 + -285

Combine like terms: -78 + -285 = -363
-3z = -363

Divide each side by '-3'.
z = 121

Simplifying
z = 121

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