9(z+1)2+12=16

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Solution for 9(z+1)2+12=16 equation: 


Simplifying
9(z + 1) * 2 + 12 = 16

Reorder the terms:
9(1 + z) * 2 + 12 = 16

Reorder the terms for easier multiplication:
9 * 2(1 + z) + 12 = 16

Multiply 9 * 2
18(1 + z) + 12 = 16
(1 * 18 + z * 18) + 12 = 16
(18 + 18z) + 12 = 16

Reorder the terms:
18 + 12 + 18z = 16

Combine like terms: 18 + 12 = 30
30 + 18z = 16

Solving
30 + 18z = 16

Solving for variable 'z'.

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

Add '-30' to each side of the equation.
30 + -30 + 18z = 16 + -30

Combine like terms: 30 + -30 = 0
0 + 18z = 16 + -30
18z = 16 + -30

Combine like terms: 16 + -30 = -14
18z = -14

Divide each side by '18'.
z = -0.7777777778

Simplifying
z = -0.7777777778

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