9-5z=12(6z+7)

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Solution for 9-5z=12(6z+7) equation:


Simplifying
9 + -5z = 12(6z + 7)

Reorder the terms:
9 + -5z = 12(7 + 6z)
9 + -5z = (7 * 12 + 6z * 12)
9 + -5z = (84 + 72z)

Solving
9 + -5z = 84 + 72z

Solving for variable 'z'.

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

Add '-72z' to each side of the equation.
9 + -5z + -72z = 84 + 72z + -72z

Combine like terms: -5z + -72z = -77z
9 + -77z = 84 + 72z + -72z

Combine like terms: 72z + -72z = 0
9 + -77z = 84 + 0
9 + -77z = 84

Add '-9' to each side of the equation.
9 + -9 + -77z = 84 + -9

Combine like terms: 9 + -9 = 0
0 + -77z = 84 + -9
-77z = 84 + -9

Combine like terms: 84 + -9 = 75
-77z = 75

Divide each side by '-77'.
z = -0.974025974

Simplifying
z = -0.974025974

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