3[7-(n+5)]+19=5(3-n)

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Solution for 3[7-(n+5)]+19=5(3-n) equation:


Simplifying
3[7 + -1(n + 5)] + 19 = 5(3 + -1n)

Reorder the terms:
3[7 + -1(5 + n)] + 19 = 5(3 + -1n)
3[7 + (5 * -1 + n * -1)] + 19 = 5(3 + -1n)
3[7 + (-5 + -1n)] + 19 = 5(3 + -1n)

Combine like terms: 7 + -5 = 2
3[2 + -1n] + 19 = 5(3 + -1n)
[2 * 3 + -1n * 3] + 19 = 5(3 + -1n)
[6 + -3n] + 19 = 5(3 + -1n)

Reorder the terms:
6 + 19 + -3n = 5(3 + -1n)

Combine like terms: 6 + 19 = 25
25 + -3n = 5(3 + -1n)
25 + -3n = (3 * 5 + -1n * 5)
25 + -3n = (15 + -5n)

Solving
25 + -3n = 15 + -5n

Solving for variable 'n'.

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

Add '5n' to each side of the equation.
25 + -3n + 5n = 15 + -5n + 5n

Combine like terms: -3n + 5n = 2n
25 + 2n = 15 + -5n + 5n

Combine like terms: -5n + 5n = 0
25 + 2n = 15 + 0
25 + 2n = 15

Add '-25' to each side of the equation.
25 + -25 + 2n = 15 + -25

Combine like terms: 25 + -25 = 0
0 + 2n = 15 + -25
2n = 15 + -25

Combine like terms: 15 + -25 = -10
2n = -10

Divide each side by '2'.
n = -5

Simplifying
n = -5

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