5+9z-1=9z+18-7z

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Solution for 5+9z-1=9z+18-7z equation:


Simplifying
5 + 9z + -1 = 9z + 18 + -7z

Reorder the terms:
5 + -1 + 9z = 9z + 18 + -7z

Combine like terms: 5 + -1 = 4
4 + 9z = 9z + 18 + -7z

Reorder the terms:
4 + 9z = 18 + 9z + -7z

Combine like terms: 9z + -7z = 2z
4 + 9z = 18 + 2z

Solving
4 + 9z = 18 + 2z

Solving for variable 'z'.

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

Add '-2z' to each side of the equation.
4 + 9z + -2z = 18 + 2z + -2z

Combine like terms: 9z + -2z = 7z
4 + 7z = 18 + 2z + -2z

Combine like terms: 2z + -2z = 0
4 + 7z = 18 + 0
4 + 7z = 18

Add '-4' to each side of the equation.
4 + -4 + 7z = 18 + -4

Combine like terms: 4 + -4 = 0
0 + 7z = 18 + -4
7z = 18 + -4

Combine like terms: 18 + -4 = 14
7z = 14

Divide each side by '7'.
z = 2

Simplifying
z = 2

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