3(n+7)=n+8

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Solution for 3(n+7)=n+8 equation:


Simplifying
3(n + 7) = n + 8

Reorder the terms:
3(7 + n) = n + 8
(7 * 3 + n * 3) = n + 8
(21 + 3n) = n + 8

Reorder the terms:
21 + 3n = 8 + n

Solving
21 + 3n = 8 + n

Solving for variable 'n'.

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

Add '-1n' to each side of the equation.
21 + 3n + -1n = 8 + n + -1n

Combine like terms: 3n + -1n = 2n
21 + 2n = 8 + n + -1n

Combine like terms: n + -1n = 0
21 + 2n = 8 + 0
21 + 2n = 8

Add '-21' to each side of the equation.
21 + -21 + 2n = 8 + -21

Combine like terms: 21 + -21 = 0
0 + 2n = 8 + -21
2n = 8 + -21

Combine like terms: 8 + -21 = -13
2n = -13

Divide each side by '2'.
n = -6.5

Simplifying
n = -6.5

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