-7z-8z=-15

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Solution for -7z-8z=-15 equation: 


Simplifying
-7z + -8z = -15

Combine like terms: -7z + -8z = -15z
-15z = -15

Solving
-15z = -15

Solving for variable 'z'.

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

Divide each side by '-15'.
z = 1

Simplifying
z = 1

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