9z+8=7z

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Solution for 9z+8=7z equation:


Simplifying
9z + 8 = 7z

Reorder the terms:
8 + 9z = 7z

Solving
8 + 9z = 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.
8 + 9z + -7z = 7z + -7z

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

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

Add '-8' to each side of the equation.
8 + -8 + 2z = 0 + -8

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

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

Divide each side by '2'.
z = -4

Simplifying
z = -4

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