7z+8=9z

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Solution for 7z+8=9z equation:


Simplifying
7z + 8 = 9z

Reorder the terms:
8 + 7z = 9z

Solving
8 + 7z = 9z

Solving for variable 'z'.

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

Add '-9z' to each side of the equation.
8 + 7z + -9z = 9z + -9z

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

Combine like terms: 9z + -9z = 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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