5(z-1)-20=0

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Solution for 5(z-1)-20=0 equation:


Simplifying
5(z + -1) + -20 = 0

Reorder the terms:
5(-1 + z) + -20 = 0
(-1 * 5 + z * 5) + -20 = 0
(-5 + 5z) + -20 = 0

Reorder the terms:
-5 + -20 + 5z = 0

Combine like terms: -5 + -20 = -25
-25 + 5z = 0

Solving
-25 + 5z = 0

Solving for variable 'z'.

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

Add '25' to each side of the equation.
-25 + 25 + 5z = 0 + 25

Combine like terms: -25 + 25 = 0
0 + 5z = 0 + 25
5z = 0 + 25

Combine like terms: 0 + 25 = 25
5z = 25

Divide each side by '5'.
z = 5

Simplifying
z = 5

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