-55+28n+21n+7n-n=

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Solution for -55+28n+21n+7n-n= equation:


Simplifying
-55 + 28n + 21n + 7n + -1n = 0

Combine like terms: 28n + 21n = 49n
-55 + 49n + 7n + -1n = 0

Combine like terms: 49n + 7n = 56n
-55 + 56n + -1n = 0

Combine like terms: 56n + -1n = 55n
-55 + 55n = 0

Solving
-55 + 55n = 0

Solving for variable 'n'.

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

Add '55' to each side of the equation.
-55 + 55 + 55n = 0 + 55

Combine like terms: -55 + 55 = 0
0 + 55n = 0 + 55
55n = 0 + 55

Combine like terms: 0 + 55 = 55
55n = 55

Divide each side by '55'.
n = 1

Simplifying
n = 1

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