7z-3+z=-9

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Solution for 7z-3+z=-9 equation:


Simplifying
7z + -3 + z = -9

Reorder the terms:
-3 + 7z + z = -9

Combine like terms: 7z + z = 8z
-3 + 8z = -9

Solving
-3 + 8z = -9

Solving for variable 'z'.

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

Add '3' to each side of the equation.
-3 + 3 + 8z = -9 + 3

Combine like terms: -3 + 3 = 0
0 + 8z = -9 + 3
8z = -9 + 3

Combine like terms: -9 + 3 = -6
8z = -6

Divide each side by '8'.
z = -0.75

Simplifying
z = -0.75

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