0.4n-1=30

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Solution for 0.4n-1=30 equation: 


Simplifying
0.4n + -1 = 30

Reorder the terms:
-1 + 0.4n = 30

Solving
-1 + 0.4n = 30

Solving for variable 'n'.

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

Add '1' to each side of the equation.
-1 + 1 + 0.4n = 30 + 1

Combine like terms: -1 + 1 = 0
0 + 0.4n = 30 + 1
0.4n = 30 + 1

Combine like terms: 30 + 1 = 31
0.4n = 31

Divide each side by '0.4'.
n = 77.5

Simplifying
n = 77.5

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