9=27z-13z-21

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Solution for 9=27z-13z-21 equation:


Simplifying
9 = 27z + -13z + -21

Reorder the terms:
9 = -21 + 27z + -13z

Combine like terms: 27z + -13z = 14z
9 = -21 + 14z

Solving
9 = -21 + 14z

Solving for variable 'z'.

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

Add '-14z' to each side of the equation.
9 + -14z = -21 + 14z + -14z

Combine like terms: 14z + -14z = 0
9 + -14z = -21 + 0
9 + -14z = -21

Add '-9' to each side of the equation.
9 + -9 + -14z = -21 + -9

Combine like terms: 9 + -9 = 0
0 + -14z = -21 + -9
-14z = -21 + -9

Combine like terms: -21 + -9 = -30
-14z = -30

Divide each side by '-14'.
z = 2.142857143

Simplifying
z = 2.142857143

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