3z-4z=3z-2-9z

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Solution for 3z-4z=3z-2-9z equation:


Simplifying
3z + -4z = 3z + -2 + -9z

Combine like terms: 3z + -4z = -1z
-1z = 3z + -2 + -9z

Reorder the terms:
-1z = -2 + 3z + -9z

Combine like terms: 3z + -9z = -6z
-1z = -2 + -6z

Solving
-1z = -2 + -6z

Solving for variable 'z'.

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

Add '6z' to each side of the equation.
-1z + 6z = -2 + -6z + 6z

Combine like terms: -1z + 6z = 5z
5z = -2 + -6z + 6z

Combine like terms: -6z + 6z = 0
5z = -2 + 0
5z = -2

Divide each side by '5'.
z = -0.4

Simplifying
z = -0.4

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