-z-9=z+13

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Solution for -z-9=z+13 equation:


Simplifying
-1z + -9 = z + 13

Reorder the terms:
-9 + -1z = z + 13

Reorder the terms:
-9 + -1z = 13 + z

Solving
-9 + -1z = 13 + 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.
-9 + -1z + -1z = 13 + z + -1z

Combine like terms: -1z + -1z = -2z
-9 + -2z = 13 + z + -1z

Combine like terms: z + -1z = 0
-9 + -2z = 13 + 0
-9 + -2z = 13

Add '9' to each side of the equation.
-9 + 9 + -2z = 13 + 9

Combine like terms: -9 + 9 = 0
0 + -2z = 13 + 9
-2z = 13 + 9

Combine like terms: 13 + 9 = 22
-2z = 22

Divide each side by '-2'.
z = -11

Simplifying
z = -11

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