(12z+9)-(5z-6)=0

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Solution for (12z+9)-(5z-6)=0 equation:


Simplifying
(12z + 9) + -1(5z + -6) = 0

Reorder the terms:
(9 + 12z) + -1(5z + -6) = 0

Remove parenthesis around (9 + 12z)
9 + 12z + -1(5z + -6) = 0

Reorder the terms:
9 + 12z + -1(-6 + 5z) = 0
9 + 12z + (-6 * -1 + 5z * -1) = 0
9 + 12z + (6 + -5z) = 0

Reorder the terms:
9 + 6 + 12z + -5z = 0

Combine like terms: 9 + 6 = 15
15 + 12z + -5z = 0

Combine like terms: 12z + -5z = 7z
15 + 7z = 0

Solving
15 + 7z = 0

Solving for variable 'z'.

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

Add '-15' to each side of the equation.
15 + -15 + 7z = 0 + -15

Combine like terms: 15 + -15 = 0
0 + 7z = 0 + -15
7z = 0 + -15

Combine like terms: 0 + -15 = -15
7z = -15

Divide each side by '7'.
z = -2.142857143

Simplifying
z = -2.142857143

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