-7(-7n-3)+n=221

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Solution for -7(-7n-3)+n=221 equation:


Simplifying
-7(-7n + -3) + n = 221

Reorder the terms:
-7(-3 + -7n) + n = 221
(-3 * -7 + -7n * -7) + n = 221
(21 + 49n) + n = 221

Combine like terms: 49n + n = 50n
21 + 50n = 221

Solving
21 + 50n = 221

Solving for variable 'n'.

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

Add '-21' to each side of the equation.
21 + -21 + 50n = 221 + -21

Combine like terms: 21 + -21 = 0
0 + 50n = 221 + -21
50n = 221 + -21

Combine like terms: 221 + -21 = 200
50n = 200

Divide each side by '50'.
n = 4

Simplifying
n = 4

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