(12z-2)+(9-20z)=

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Solution for (12z-2)+(9-20z)= equation:


Simplifying
(12z + -2) + (9 + -20z) = 0

Reorder the terms:
(-2 + 12z) + (9 + -20z) = 0

Remove parenthesis around (-2 + 12z)
-2 + 12z + (9 + -20z) = 0

Remove parenthesis around (9 + -20z)
-2 + 12z + 9 + -20z = 0

Reorder the terms:
-2 + 9 + 12z + -20z = 0

Combine like terms: -2 + 9 = 7
7 + 12z + -20z = 0

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

Solving
7 + -8z = 0

Solving for variable 'z'.

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

Add '-7' to each side of the equation.
7 + -7 + -8z = 0 + -7

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

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

Divide each side by '-8'.
z = 0.875

Simplifying
z = 0.875

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