7[n+6]=74-4[n-3]

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Solution for 7[n+6]=74-4[n-3] equation:


Simplifying
7[n + 6] = 74 + -4[n + -3]

Reorder the terms:
7[6 + n] = 74 + -4[n + -3]
[6 * 7 + n * 7] = 74 + -4[n + -3]
[42 + 7n] = 74 + -4[n + -3]

Reorder the terms:
42 + 7n = 74 + -4[-3 + n]
42 + 7n = 74 + [-3 * -4 + n * -4]
42 + 7n = 74 + [12 + -4n]

Combine like terms: 74 + 12 = 86
42 + 7n = 86 + -4n

Solving
42 + 7n = 86 + -4n

Solving for variable 'n'.

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

Add '4n' to each side of the equation.
42 + 7n + 4n = 86 + -4n + 4n

Combine like terms: 7n + 4n = 11n
42 + 11n = 86 + -4n + 4n

Combine like terms: -4n + 4n = 0
42 + 11n = 86 + 0
42 + 11n = 86

Add '-42' to each side of the equation.
42 + -42 + 11n = 86 + -42

Combine like terms: 42 + -42 = 0
0 + 11n = 86 + -42
11n = 86 + -42

Combine like terms: 86 + -42 = 44
11n = 44

Divide each side by '11'.
n = 4

Simplifying
n = 4

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