3z-8=7

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Solution for 3z-8=7 equation: 


Simplifying
3z + -8 = 7

Reorder the terms:
-8 + 3z = 7

Solving
-8 + 3z = 7

Solving for variable 'z'.

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

Add '8' to each side of the equation.
-8 + 8 + 3z = 7 + 8

Combine like terms: -8 + 8 = 0
0 + 3z = 7 + 8
3z = 7 + 8

Combine like terms: 7 + 8 = 15
3z = 15

Divide each side by '3'.
z = 5

Simplifying
z = 5

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