-z+9=-7z-9

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Solution for -z+9=-7z-9 equation:


Simplifying
-1z + 9 = -7z + -9

Reorder the terms:
9 + -1z = -7z + -9

Reorder the terms:
9 + -1z = -9 + -7z

Solving
9 + -1z = -9 + -7z

Solving for variable 'z'.

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

Add '7z' to each side of the equation.
9 + -1z + 7z = -9 + -7z + 7z

Combine like terms: -1z + 7z = 6z
9 + 6z = -9 + -7z + 7z

Combine like terms: -7z + 7z = 0
9 + 6z = -9 + 0
9 + 6z = -9

Add '-9' to each side of the equation.
9 + -9 + 6z = -9 + -9

Combine like terms: 9 + -9 = 0
0 + 6z = -9 + -9
6z = -9 + -9

Combine like terms: -9 + -9 = -18
6z = -18

Divide each side by '6'.
z = -3

Simplifying
z = -3

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