3(2n+5)=9(9n+7)+9

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Solution for 3(2n+5)=9(9n+7)+9 equation:


Simplifying
3(2n + 5) = 9(9n + 7) + 9

Reorder the terms:
3(5 + 2n) = 9(9n + 7) + 9
(5 * 3 + 2n * 3) = 9(9n + 7) + 9
(15 + 6n) = 9(9n + 7) + 9

Reorder the terms:
15 + 6n = 9(7 + 9n) + 9
15 + 6n = (7 * 9 + 9n * 9) + 9
15 + 6n = (63 + 81n) + 9

Reorder the terms:
15 + 6n = 63 + 9 + 81n

Combine like terms: 63 + 9 = 72
15 + 6n = 72 + 81n

Solving
15 + 6n = 72 + 81n

Solving for variable 'n'.

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

Add '-81n' to each side of the equation.
15 + 6n + -81n = 72 + 81n + -81n

Combine like terms: 6n + -81n = -75n
15 + -75n = 72 + 81n + -81n

Combine like terms: 81n + -81n = 0
15 + -75n = 72 + 0
15 + -75n = 72

Add '-15' to each side of the equation.
15 + -15 + -75n = 72 + -15

Combine like terms: 15 + -15 = 0
0 + -75n = 72 + -15
-75n = 72 + -15

Combine like terms: 72 + -15 = 57
-75n = 57

Divide each side by '-75'.
n = -0.76

Simplifying
n = -0.76

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