-6z+9z=-7z-7+8z

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Solution for -6z+9z=-7z-7+8z equation:


Simplifying
-6z + 9z = -7z + -7 + 8z

Combine like terms: -6z + 9z = 3z
3z = -7z + -7 + 8z

Reorder the terms:
3z = -7 + -7z + 8z

Combine like terms: -7z + 8z = 1z
3z = -7 + 1z

Solving
3z = -7 + 1z

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.
3z + -1z = -7 + 1z + -1z

Combine like terms: 3z + -1z = 2z
2z = -7 + 1z + -1z

Combine like terms: 1z + -1z = 0
2z = -7 + 0
2z = -7

Divide each side by '2'.
z = -3.5

Simplifying
z = -3.5

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