7(3n-4)=(9n+9)+2

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Solution for 7(3n-4)=(9n+9)+2 equation:


Simplifying
7(3n + -4) = (9n + 9) + 2

Reorder the terms:
7(-4 + 3n) = (9n + 9) + 2
(-4 * 7 + 3n * 7) = (9n + 9) + 2
(-28 + 21n) = (9n + 9) + 2

Reorder the terms:
-28 + 21n = (9 + 9n) + 2

Remove parenthesis around (9 + 9n)
-28 + 21n = 9 + 9n + 2

Reorder the terms:
-28 + 21n = 9 + 2 + 9n

Combine like terms: 9 + 2 = 11
-28 + 21n = 11 + 9n

Solving
-28 + 21n = 11 + 9n

Solving for variable 'n'.

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

Add '-9n' to each side of the equation.
-28 + 21n + -9n = 11 + 9n + -9n

Combine like terms: 21n + -9n = 12n
-28 + 12n = 11 + 9n + -9n

Combine like terms: 9n + -9n = 0
-28 + 12n = 11 + 0
-28 + 12n = 11

Add '28' to each side of the equation.
-28 + 28 + 12n = 11 + 28

Combine like terms: -28 + 28 = 0
0 + 12n = 11 + 28
12n = 11 + 28

Combine like terms: 11 + 28 = 39
12n = 39

Divide each side by '12'.
n = 3.25

Simplifying
n = 3.25

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