7z-5=z+7

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Solution for 7z-5=z+7 equation:


Simplifying
7z + -5 = z + 7

Reorder the terms:
-5 + 7z = z + 7

Reorder the terms:
-5 + 7z = 7 + z

Solving
-5 + 7z = 7 + z

Solving for variable 'z'.

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

Add '-1z' to each side of the equation.
-5 + 7z + -1z = 7 + z + -1z

Combine like terms: 7z + -1z = 6z
-5 + 6z = 7 + z + -1z

Combine like terms: z + -1z = 0
-5 + 6z = 7 + 0
-5 + 6z = 7

Add '5' to each side of the equation.
-5 + 5 + 6z = 7 + 5

Combine like terms: -5 + 5 = 0
0 + 6z = 7 + 5
6z = 7 + 5

Combine like terms: 7 + 5 = 12
6z = 12

Divide each side by '6'.
z = 2

Simplifying
z = 2

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