7z-3=9z-3z

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Solution for 7z-3=9z-3z equation:


Simplifying
7z + -3 = 9z + -3z

Reorder the terms:
-3 + 7z = 9z + -3z

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

Solving
-3 + 7z = 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.
-3 + 7z + -6z = 6z + -6z

Combine like terms: 7z + -6z = 1z
-3 + 1z = 6z + -6z

Combine like terms: 6z + -6z = 0
-3 + 1z = 0

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

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

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

Divide each side by '1'.
z = 3

Simplifying
z = 3

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