-12-z-18=z

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Solution for -12-z-18=z equation:


Simplifying
-12 + -1z + -18 = z

Reorder the terms:
-12 + -18 + -1z = z

Combine like terms: -12 + -18 = -30
-30 + -1z = z

Solving
-30 + -1z = 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.
-30 + -1z + -1z = z + -1z

Combine like terms: -1z + -1z = -2z
-30 + -2z = z + -1z

Combine like terms: z + -1z = 0
-30 + -2z = 0

Add '30' to each side of the equation.
-30 + 30 + -2z = 0 + 30

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

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

Divide each side by '-2'.
z = -15

Simplifying
z = -15

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