20-3z=3.5

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Solution for 20-3z=3.5 equation:


Simplifying
20 + -3z = 3.5

Solving
20 + -3z = 3.5

Solving for variable 'z'.

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

Add '-20' to each side of the equation.
20 + -20 + -3z = 3.5 + -20

Combine like terms: 20 + -20 = 0
0 + -3z = 3.5 + -20
-3z = 3.5 + -20

Combine like terms: 3.5 + -20 = -16.5
-3z = -16.5

Divide each side by '-3'.
z = 5.5

Simplifying
z = 5.5

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