4n-9=3(2n+5)

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Solution for 4n-9=3(2n+5) equation:


Simplifying
4n + -9 = 3(2n + 5)

Reorder the terms:
-9 + 4n = 3(2n + 5)

Reorder the terms:
-9 + 4n = 3(5 + 2n)
-9 + 4n = (5 * 3 + 2n * 3)
-9 + 4n = (15 + 6n)

Solving
-9 + 4n = 15 + 6n

Solving for variable 'n'.

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

Add '-6n' to each side of the equation.
-9 + 4n + -6n = 15 + 6n + -6n

Combine like terms: 4n + -6n = -2n
-9 + -2n = 15 + 6n + -6n

Combine like terms: 6n + -6n = 0
-9 + -2n = 15 + 0
-9 + -2n = 15

Add '9' to each side of the equation.
-9 + 9 + -2n = 15 + 9

Combine like terms: -9 + 9 = 0
0 + -2n = 15 + 9
-2n = 15 + 9

Combine like terms: 15 + 9 = 24
-2n = 24

Divide each side by '-2'.
n = -12

Simplifying
n = -12

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