6z-18=3z-9

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Solution for 6z-18=3z-9 equation:


Simplifying
6z + -18 = 3z + -9

Reorder the terms:
-18 + 6z = 3z + -9

Reorder the terms:
-18 + 6z = -9 + 3z

Solving
-18 + 6z = -9 + 3z

Solving for variable 'z'.

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

Add '-3z' to each side of the equation.
-18 + 6z + -3z = -9 + 3z + -3z

Combine like terms: 6z + -3z = 3z
-18 + 3z = -9 + 3z + -3z

Combine like terms: 3z + -3z = 0
-18 + 3z = -9 + 0
-18 + 3z = -9

Add '18' to each side of the equation.
-18 + 18 + 3z = -9 + 18

Combine like terms: -18 + 18 = 0
0 + 3z = -9 + 18
3z = -9 + 18

Combine like terms: -9 + 18 = 9
3z = 9

Divide each side by '3'.
z = 3

Simplifying
z = 3

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