12z-9=3z+12

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Solution for 12z-9=3z+12 equation:


Simplifying
12z + -9 = 3z + 12

Reorder the terms:
-9 + 12z = 3z + 12

Reorder the terms:
-9 + 12z = 12 + 3z

Solving
-9 + 12z = 12 + 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.
-9 + 12z + -3z = 12 + 3z + -3z

Combine like terms: 12z + -3z = 9z
-9 + 9z = 12 + 3z + -3z

Combine like terms: 3z + -3z = 0
-9 + 9z = 12 + 0
-9 + 9z = 12

Add '9' to each side of the equation.
-9 + 9 + 9z = 12 + 9

Combine like terms: -9 + 9 = 0
0 + 9z = 12 + 9
9z = 12 + 9

Combine like terms: 12 + 9 = 21
9z = 21

Divide each side by '9'.
z = 2.333333333

Simplifying
z = 2.333333333

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