n+(n+3.5)=18

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Solution for n+(n+3.5)=18 equation:


Simplifying
n + (n + 3.5) = 18

Reorder the terms:
n + (3.5 + n) = 18

Remove parenthesis around (3.5 + n)
n + 3.5 + n = 18

Reorder the terms:
3.5 + n + n = 18

Combine like terms: n + n = 2n
3.5 + 2n = 18

Solving
3.5 + 2n = 18

Solving for variable 'n'.

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

Add '-3.5' to each side of the equation.
3.5 + -3.5 + 2n = 18 + -3.5

Combine like terms: 3.5 + -3.5 = 0.0
0.0 + 2n = 18 + -3.5
2n = 18 + -3.5

Combine like terms: 18 + -3.5 = 14.5
2n = 14.5

Divide each side by '2'.
n = 7.25

Simplifying
n = 7.25

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