6z-5z=-21+15

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Solution for 6z-5z=-21+15 equation: 


Simplifying
6z + -5z = -21 + 15

Combine like terms: 6z + -5z = 1z
1z = -21 + 15

Combine like terms: -21 + 15 = -6
1z = -6

Solving
1z = -6

Solving for variable 'z'.

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

Divide each side by '1'.
z = -6

Simplifying
z = -6

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