18z-1=19z-20

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Solution for 18z-1=19z-20 equation:


Simplifying
18z + -1 = 19z + -20

Reorder the terms:
-1 + 18z = 19z + -20

Reorder the terms:
-1 + 18z = -20 + 19z

Solving
-1 + 18z = -20 + 19z

Solving for variable 'z'.

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

Add '-19z' to each side of the equation.
-1 + 18z + -19z = -20 + 19z + -19z

Combine like terms: 18z + -19z = -1z
-1 + -1z = -20 + 19z + -19z

Combine like terms: 19z + -19z = 0
-1 + -1z = -20 + 0
-1 + -1z = -20

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

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

Combine like terms: -20 + 1 = -19
-1z = -19

Divide each side by '-1'.
z = 19

Simplifying
z = 19

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