18=3z+9

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Solution for 18=3z+9 equation:


Simplifying
18 = 3z + 9

Reorder the terms:
18 = 9 + 3z

Solving
18 = 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 + -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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