84=z+30

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Solution for 84=z+30 equation:


Simplifying
84 = z + 30

Reorder the terms:
84 = 30 + z

Solving
84 = 30 + z

Solving for variable 'z'.

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

Add '-1z' to each side of the equation.
84 + -1z = 30 + z + -1z

Combine like terms: z + -1z = 0
84 + -1z = 30 + 0
84 + -1z = 30

Add '-84' to each side of the equation.
84 + -84 + -1z = 30 + -84

Combine like terms: 84 + -84 = 0
0 + -1z = 30 + -84
-1z = 30 + -84

Combine like terms: 30 + -84 = -54
-1z = -54

Divide each side by '-1'.
z = 54

Simplifying
z = 54

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