[7z+8]=-9

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Solution for [7z+8]=-9 equation: 


Simplifying
[7z + 8] = -9

Reorder the terms:
[8 + 7z] = -9

Remove brackets around [8 + 7z]
8 + 7z = -9

Solving
8 + 7z = -9

Solving for variable 'z'.

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

Add '-8' to each side of the equation.
8 + -8 + 7z = -9 + -8

Combine like terms: 8 + -8 = 0
0 + 7z = -9 + -8
7z = -9 + -8

Combine like terms: -9 + -8 = -17
7z = -17

Divide each side by '7'.
z = -2.428571429

Simplifying
z = -2.428571429

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