9z+5-7z=23-7z

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Solution for 9z+5-7z=23-7z equation:


Simplifying
9z + 5 + -7z = 23 + -7z

Reorder the terms:
5 + 9z + -7z = 23 + -7z

Combine like terms: 9z + -7z = 2z
5 + 2z = 23 + -7z

Solving
5 + 2z = 23 + -7z

Solving for variable 'z'.

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

Add '7z' to each side of the equation.
5 + 2z + 7z = 23 + -7z + 7z

Combine like terms: 2z + 7z = 9z
5 + 9z = 23 + -7z + 7z

Combine like terms: -7z + 7z = 0
5 + 9z = 23 + 0
5 + 9z = 23

Add '-5' to each side of the equation.
5 + -5 + 9z = 23 + -5

Combine like terms: 5 + -5 = 0
0 + 9z = 23 + -5
9z = 23 + -5

Combine like terms: 23 + -5 = 18
9z = 18

Divide each side by '9'.
z = 2

Simplifying
z = 2

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