1+3+5+7+(2n-1)=26

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Solution for 1+3+5+7+(2n-1)=26 equation: 


Simplifying
1 + 3 + 5 + 7 + (2n + -1) = 26

Reorder the terms:
1 + 3 + 5 + 7 + (-1 + 2n) = 26

Remove parenthesis around (-1 + 2n)
1 + 3 + 5 + 7 + -1 + 2n = 26

Combine like terms: 1 + 3 = 4
4 + 5 + 7 + -1 + 2n = 26

Combine like terms: 4 + 5 = 9
9 + 7 + -1 + 2n = 26

Combine like terms: 9 + 7 = 16
16 + -1 + 2n = 26

Combine like terms: 16 + -1 = 15
15 + 2n = 26

Solving
15 + 2n = 26

Solving for variable 'n'.

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

Add '-15' to each side of the equation.
15 + -15 + 2n = 26 + -15

Combine like terms: 15 + -15 = 0
0 + 2n = 26 + -15
2n = 26 + -15

Combine like terms: 26 + -15 = 11
2n = 11

Divide each side by '2'.
n = 5.5

Simplifying
n = 5.5

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