9z+7-z=2+7z-2

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Solution for 9z+7-z=2+7z-2 equation:


Simplifying
9z + 7 + -1z = 2 + 7z + -2

Reorder the terms:
7 + 9z + -1z = 2 + 7z + -2

Combine like terms: 9z + -1z = 8z
7 + 8z = 2 + 7z + -2

Reorder the terms:
7 + 8z = 2 + -2 + 7z

Combine like terms: 2 + -2 = 0
7 + 8z = 0 + 7z
7 + 8z = 7z

Solving
7 + 8z = 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.
7 + 8z + -7z = 7z + -7z

Combine like terms: 8z + -7z = 1z
7 + 1z = 7z + -7z

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

Add '-7' to each side of the equation.
7 + -7 + 1z = 0 + -7

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

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

Divide each side by '1'.
z = -7

Simplifying
z = -7

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