8z-4=7z

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Solution for 8z-4=7z equation:


Simplifying
8z + -4 = 7z

Reorder the terms:
-4 + 8z = 7z

Solving
-4 + 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.
-4 + 8z + -7z = 7z + -7z

Combine like terms: 8z + -7z = 1z
-4 + 1z = 7z + -7z

Combine like terms: 7z + -7z = 0
-4 + 1z = 0

Add '4' to each side of the equation.
-4 + 4 + 1z = 0 + 4

Combine like terms: -4 + 4 = 0
0 + 1z = 0 + 4
1z = 0 + 4

Combine like terms: 0 + 4 = 4
1z = 4

Divide each side by '1'.
z = 4

Simplifying
z = 4

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