20z-15=13-1

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Solution for 20z-15=13-1 equation:


Simplifying
20z + -15 = 13 + -1

Reorder the terms:
-15 + 20z = 13 + -1

Combine like terms: 13 + -1 = 12
-15 + 20z = 12

Solving
-15 + 20z = 12

Solving for variable 'z'.

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

Add '15' to each side of the equation.
-15 + 15 + 20z = 12 + 15

Combine like terms: -15 + 15 = 0
0 + 20z = 12 + 15
20z = 12 + 15

Combine like terms: 12 + 15 = 27
20z = 27

Divide each side by '20'.
z = 1.35

Simplifying
z = 1.35

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