(5n+7n)-(9n-4n+3)=

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Solution for (5n+7n)-(9n-4n+3)= equation:


Simplifying
(5n + 7n) + -1(9n + -4n + 3) = 0

Combine like terms: 5n + 7n = 12n
(12n) + -1(9n + -4n + 3) = 0
(12n) + -1(9n + -4n + 3) = 0

Reorder the terms:
(12n) + -1(3 + 9n + -4n) = 0

Combine like terms: 9n + -4n = 5n
(12n) + -1(3 + 5n) = 0
(12n) + (3 * -1 + 5n * -1) = 0
(12n) + (-3 + -5n) = 0

Reorder the terms:
-3 + (12n) + -5n = 0

Combine like terms: (12n) + -5n = 7n
-3 + 7n = 0

Solving
-3 + 7n = 0

Solving for variable 'n'.

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

Add '3' to each side of the equation.
-3 + 3 + 7n = 0 + 3

Combine like terms: -3 + 3 = 0
0 + 7n = 0 + 3
7n = 0 + 3

Combine like terms: 0 + 3 = 3
7n = 3

Divide each side by '7'.
n = 0.4285714286

Simplifying
n = 0.4285714286

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