7z-8-z-12=0

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Solution for 7z-8-z-12=0 equation:


Simplifying
7z + -8 + -1z + -12 = 0

Reorder the terms:
-8 + -12 + 7z + -1z = 0

Combine like terms: -8 + -12 = -20
-20 + 7z + -1z = 0

Combine like terms: 7z + -1z = 6z
-20 + 6z = 0

Solving
-20 + 6z = 0

Solving for variable 'z'.

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

Add '20' to each side of the equation.
-20 + 20 + 6z = 0 + 20

Combine like terms: -20 + 20 = 0
0 + 6z = 0 + 20
6z = 0 + 20

Combine like terms: 0 + 20 = 20
6z = 20

Divide each side by '6'.
z = 3.333333333

Simplifying
z = 3.333333333

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