8z-20=25-z

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Solution for 8z-20=25-z equation:


Simplifying
8z + -20 = 25 + -1z

Reorder the terms:
-20 + 8z = 25 + -1z

Solving
-20 + 8z = 25 + -1z

Solving for variable 'z'.

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

Add 'z' to each side of the equation.
-20 + 8z + z = 25 + -1z + z

Combine like terms: 8z + z = 9z
-20 + 9z = 25 + -1z + z

Combine like terms: -1z + z = 0
-20 + 9z = 25 + 0
-20 + 9z = 25

Add '20' to each side of the equation.
-20 + 20 + 9z = 25 + 20

Combine like terms: -20 + 20 = 0
0 + 9z = 25 + 20
9z = 25 + 20

Combine like terms: 25 + 20 = 45
9z = 45

Divide each side by '9'.
z = 5

Simplifying
z = 5

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