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

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


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

Reorder the terms:
3(-3 + 3n) = (4n + 5) + 7
(-3 * 3 + 3n * 3) = (4n + 5) + 7
(-9 + 9n) = (4n + 5) + 7

Reorder the terms:
-9 + 9n = (5 + 4n) + 7

Remove parenthesis around (5 + 4n)
-9 + 9n = 5 + 4n + 7

Reorder the terms:
-9 + 9n = 5 + 7 + 4n

Combine like terms: 5 + 7 = 12
-9 + 9n = 12 + 4n

Solving
-9 + 9n = 12 + 4n

Solving for variable 'n'.

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

Add '-4n' to each side of the equation.
-9 + 9n + -4n = 12 + 4n + -4n

Combine like terms: 9n + -4n = 5n
-9 + 5n = 12 + 4n + -4n

Combine like terms: 4n + -4n = 0
-9 + 5n = 12 + 0
-9 + 5n = 12

Add '9' to each side of the equation.
-9 + 9 + 5n = 12 + 9

Combine like terms: -9 + 9 = 0
0 + 5n = 12 + 9
5n = 12 + 9

Combine like terms: 12 + 9 = 21
5n = 21

Divide each side by '5'.
n = 4.2

Simplifying
n = 4.2

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