7z-7=8z

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Solution for 7z-7=8z equation:


Simplifying
7z + -7 = 8z

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

Solving
-7 + 7z = 8z

Solving for variable 'z'.

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

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

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

Combine like terms: 8z + -8z = 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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