N+(40+N)+(3N)=17.20

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Solution for N+(40+N)+(3N)=17.20 equation: 


Simplifying
N + (40 + N) + (3N) = 17.20

Remove parenthesis around (40 + N)
N + 40 + N + (3N) = 17.20

Reorder the terms:
40 + N + N + (3N) = 17.20

Combine like terms: N + N = 2N
40 + 2N + (3N) = 17.20

Combine like terms: 2N + (3N) = 5N
40 + 5N = 17.20

Solving
40 + 5N = 17.20

Solving for variable 'N'.

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

Add '-40' to each side of the equation.
40 + -40 + 5N = 17.20 + -40

Combine like terms: 40 + -40 = 0
0 + 5N = 17.20 + -40
5N = 17.20 + -40

Combine like terms: 17.20 + -40 = -22.8
5N = -22.8

Divide each side by '5'.
N = -4.56

Simplifying
N = -4.56

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