-15-z=-9+z

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Solution for -15-z=-9+z equation:


Simplifying
-15 + -1z = -9 + z

Solving
-15 + -1z = -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.
-15 + -1z + -1z = -9 + z + -1z

Combine like terms: -1z + -1z = -2z
-15 + -2z = -9 + z + -1z

Combine like terms: z + -1z = 0
-15 + -2z = -9 + 0
-15 + -2z = -9

Add '15' to each side of the equation.
-15 + 15 + -2z = -9 + 15

Combine like terms: -15 + 15 = 0
0 + -2z = -9 + 15
-2z = -9 + 15

Combine like terms: -9 + 15 = 6
-2z = 6

Divide each side by '-2'.
z = -3

Simplifying
z = -3

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