-7(3n-3)-5n=-7n+21

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Solution for -7(3n-3)-5n=-7n+21 equation:


Simplifying
-7(3n + -3) + -5n = -7n + 21

Reorder the terms:
-7(-3 + 3n) + -5n = -7n + 21
(-3 * -7 + 3n * -7) + -5n = -7n + 21
(21 + -21n) + -5n = -7n + 21

Combine like terms: -21n + -5n = -26n
21 + -26n = -7n + 21

Reorder the terms:
21 + -26n = 21 + -7n

Add '-21' to each side of the equation.
21 + -21 + -26n = 21 + -21 + -7n

Combine like terms: 21 + -21 = 0
0 + -26n = 21 + -21 + -7n
-26n = 21 + -21 + -7n

Combine like terms: 21 + -21 = 0
-26n = 0 + -7n
-26n = -7n

Solving
-26n = -7n

Solving for variable 'n'.

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

Add '7n' to each side of the equation.
-26n + 7n = -7n + 7n

Combine like terms: -26n + 7n = -19n
-19n = -7n + 7n

Combine like terms: -7n + 7n = 0
-19n = 0

Divide each side by '-19'.
n = 0

Simplifying
n = 0

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