7z-8+9-4z=

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Solution for 7z-8+9-4z= equation:


Simplifying
7z + -8 + 9 + -4z = 0

Reorder the terms:
-8 + 9 + 7z + -4z = 0

Combine like terms: -8 + 9 = 1
1 + 7z + -4z = 0

Combine like terms: 7z + -4z = 3z
1 + 3z = 0

Solving
1 + 3z = 0

Solving for variable 'z'.

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

Add '-1' to each side of the equation.
1 + -1 + 3z = 0 + -1

Combine like terms: 1 + -1 = 0
0 + 3z = 0 + -1
3z = 0 + -1

Combine like terms: 0 + -1 = -1
3z = -1

Divide each side by '3'.
z = -0.3333333333

Simplifying
z = -0.3333333333

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