15=z+6+6

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Solution for 15=z+6+6 equation: 


Simplifying
15 = z + 6 + 6

Reorder the terms:
15 = 6 + 6 + z

Combine like terms: 6 + 6 = 12
15 = 12 + z

Solving
15 = 12 + z

Solving for variable 'z'.

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

Add '-1z' to each side of the equation.
15 + -1z = 12 + z + -1z

Combine like terms: z + -1z = 0
15 + -1z = 12 + 0
15 + -1z = 12

Add '-15' to each side of the equation.
15 + -15 + -1z = 12 + -15

Combine like terms: 15 + -15 = 0
0 + -1z = 12 + -15
-1z = 12 + -15

Combine like terms: 12 + -15 = -3
-1z = -3

Divide each side by '-1'.
z = 3

Simplifying
z = 3

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