.40+.10=.50(n+4)

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Solution for .40+.10=.50(n+4) equation: 


Simplifying
0.40 + 0.10 = 0.50(n + 4)

Combine like terms: 0.40 + 0.10 = 0.5
0.5 = 0.50(n + 4)

Reorder the terms:
0.5 = 0.50(4 + n)
0.5 = (4 * 0.50 + n * 0.50)
0.5 = (2 + 0.50n)

Solving
0.5 = 2 + 0.50n

Solving for variable 'n'.

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

Add '-0.50n' to each side of the equation.
0.5 + -0.50n = 2 + 0.50n + -0.50n

Combine like terms: 0.50n + -0.50n = 0.00
0.5 + -0.50n = 2 + 0.00
0.5 + -0.50n = 2

Add '-0.5' to each side of the equation.
0.5 + -0.5 + -0.50n = 2 + -0.5

Combine like terms: 0.5 + -0.5 = 0.0
0.0 + -0.50n = 2 + -0.5
-0.50n = 2 + -0.5

Combine like terms: 2 + -0.5 = 1.5
-0.50n = 1.5

Divide each side by '-0.50'.
n = -3

Simplifying
n = -3

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