9n+(7n+42)=84

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Solution for 9n+(7n+42)=84 equation:


Simplifying
9n + (7n + 42) = 84

Reorder the terms:
9n + (42 + 7n) = 84

Remove parenthesis around (42 + 7n)
9n + 42 + 7n = 84

Reorder the terms:
42 + 9n + 7n = 84

Combine like terms: 9n + 7n = 16n
42 + 16n = 84

Solving
42 + 16n = 84

Solving for variable 'n'.

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

Add '-42' to each side of the equation.
42 + -42 + 16n = 84 + -42

Combine like terms: 42 + -42 = 0
0 + 16n = 84 + -42
16n = 84 + -42

Combine like terms: 84 + -42 = 42
16n = 42

Divide each side by '16'.
n = 2.625

Simplifying
n = 2.625

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