17=z-(-9)

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Solution for 17=z-(-9) equation:


Simplifying
17 = z + -1(-9)

Multiply -1 * -9
17 = z + 9

Reorder the terms:
17 = 9 + z

Solving
17 = 9 + 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.
17 + -1z = 9 + z + -1z

Combine like terms: z + -1z = 0
17 + -1z = 9 + 0
17 + -1z = 9

Add '-17' to each side of the equation.
17 + -17 + -1z = 9 + -17

Combine like terms: 17 + -17 = 0
0 + -1z = 9 + -17
-1z = 9 + -17

Combine like terms: 9 + -17 = -8
-1z = -8

Divide each side by '-1'.
z = 8

Simplifying
z = 8

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