6z+5z=9z-15

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Solution for 6z+5z=9z-15 equation: 


Simplifying
6z + 5z = 9z + -15

Combine like terms: 6z + 5z = 11z
11z = 9z + -15

Reorder the terms:
11z = -15 + 9z

Solving
11z = -15 + 9z

Solving for variable 'z'.

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

Add '-9z' to each side of the equation.
11z + -9z = -15 + 9z + -9z

Combine like terms: 11z + -9z = 2z
2z = -15 + 9z + -9z

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

Divide each side by '2'.
z = -7.5

Simplifying
z = -7.5

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