7(3n+3)=6(7n+7)+9

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Solution for 7(3n+3)=6(7n+7)+9 equation:


Simplifying
7(3n + 3) = 6(7n + 7) + 9

Reorder the terms:
7(3 + 3n) = 6(7n + 7) + 9
(3 * 7 + 3n * 7) = 6(7n + 7) + 9
(21 + 21n) = 6(7n + 7) + 9

Reorder the terms:
21 + 21n = 6(7 + 7n) + 9
21 + 21n = (7 * 6 + 7n * 6) + 9
21 + 21n = (42 + 42n) + 9

Reorder the terms:
21 + 21n = 42 + 9 + 42n

Combine like terms: 42 + 9 = 51
21 + 21n = 51 + 42n

Solving
21 + 21n = 51 + 42n

Solving for variable 'n'.

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

Add '-42n' to each side of the equation.
21 + 21n + -42n = 51 + 42n + -42n

Combine like terms: 21n + -42n = -21n
21 + -21n = 51 + 42n + -42n

Combine like terms: 42n + -42n = 0
21 + -21n = 51 + 0
21 + -21n = 51

Add '-21' to each side of the equation.
21 + -21 + -21n = 51 + -21

Combine like terms: 21 + -21 = 0
0 + -21n = 51 + -21
-21n = 51 + -21

Combine like terms: 51 + -21 = 30
-21n = 30

Divide each side by '-21'.
n = -1.428571429

Simplifying
n = -1.428571429

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