15-z=6

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Solution for 15-z=6 equation: 


Simplifying
15 + -1z = 6

Solving
15 + -1z = 6

Solving for variable 'z'.

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

Add '-15' to each side of the equation.
15 + -15 + -1z = 6 + -15

Combine like terms: 15 + -15 = 0
0 + -1z = 6 + -15
-1z = 6 + -15

Combine like terms: 6 + -15 = -9
-1z = -9

Divide each side by '-1'.
z = 9

Simplifying
z = 9

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