5z+12=9z+18

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Solution for 5z+12=9z+18 equation:


Simplifying
5z + 12 = 9z + 18

Reorder the terms:
12 + 5z = 9z + 18

Reorder the terms:
12 + 5z = 18 + 9z

Solving
12 + 5z = 18 + 9z

Solving for variable 'z'.

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

Add '-9z' to each side of the equation.
12 + 5z + -9z = 18 + 9z + -9z

Combine like terms: 5z + -9z = -4z
12 + -4z = 18 + 9z + -9z

Combine like terms: 9z + -9z = 0
12 + -4z = 18 + 0
12 + -4z = 18

Add '-12' to each side of the equation.
12 + -12 + -4z = 18 + -12

Combine like terms: 12 + -12 = 0
0 + -4z = 18 + -12
-4z = 18 + -12

Combine like terms: 18 + -12 = 6
-4z = 6

Divide each side by '-4'.
z = -1.5

Simplifying
z = -1.5

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