3[10+(3n-1)-(4-n)]=5(n+10)

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Solution for 3[10+(3n-1)-(4-n)]=5(n+10) equation:


Simplifying
3[10 + (3n + -1) + -1(4 + -1n)] = 5(n + 10)

Reorder the terms:
3[10 + (-1 + 3n) + -1(4 + -1n)] = 5(n + 10)

Remove parenthesis around (-1 + 3n)
3[10 + -1 + 3n + -1(4 + -1n)] = 5(n + 10)
3[10 + -1 + 3n + (4 * -1 + -1n * -1)] = 5(n + 10)
3[10 + -1 + 3n + (-4 + 1n)] = 5(n + 10)

Reorder the terms:
3[10 + -1 + -4 + 3n + 1n] = 5(n + 10)

Combine like terms: 10 + -1 = 9
3[9 + -4 + 3n + 1n] = 5(n + 10)

Combine like terms: 9 + -4 = 5
3[5 + 3n + 1n] = 5(n + 10)

Combine like terms: 3n + 1n = 4n
3[5 + 4n] = 5(n + 10)
[5 * 3 + 4n * 3] = 5(n + 10)
[15 + 12n] = 5(n + 10)

Reorder the terms:
15 + 12n = 5(10 + n)
15 + 12n = (10 * 5 + n * 5)
15 + 12n = (50 + 5n)

Solving
15 + 12n = 50 + 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.
15 + 12n + -5n = 50 + 5n + -5n

Combine like terms: 12n + -5n = 7n
15 + 7n = 50 + 5n + -5n

Combine like terms: 5n + -5n = 0
15 + 7n = 50 + 0
15 + 7n = 50

Add '-15' to each side of the equation.
15 + -15 + 7n = 50 + -15

Combine like terms: 15 + -15 = 0
0 + 7n = 50 + -15
7n = 50 + -15

Combine like terms: 50 + -15 = 35
7n = 35

Divide each side by '7'.
n = 5

Simplifying
n = 5

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