9z-12-2z+15=0

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Solution for 9z-12-2z+15=0 equation:


Simplifying
9z + -12 + -2z + 15 = 0

Reorder the terms:
-12 + 15 + 9z + -2z = 0

Combine like terms: -12 + 15 = 3
3 + 9z + -2z = 0

Combine like terms: 9z + -2z = 7z
3 + 7z = 0

Solving
3 + 7z = 0

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 + 7z = 0 + -3

Combine like terms: 3 + -3 = 0
0 + 7z = 0 + -3
7z = 0 + -3

Combine like terms: 0 + -3 = -3
7z = -3

Divide each side by '7'.
z = -0.4285714286

Simplifying
z = -0.4285714286

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