5z+-8z+-12=9

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Solution for 5z+-8z+-12=9 equation:


Simplifying
5z + -8z + -12 = 9

Reorder the terms:
-12 + 5z + -8z = 9

Combine like terms: 5z + -8z = -3z
-12 + -3z = 9

Solving
-12 + -3z = 9

Solving for variable 'z'.

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

Add '12' to each side of the equation.
-12 + 12 + -3z = 9 + 12

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

Combine like terms: 9 + 12 = 21
-3z = 21

Divide each side by '-3'.
z = -7

Simplifying
z = -7

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