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

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


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

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

Reorder the terms:
-28 + 21n = (7 + 9n) + 7

Remove parenthesis around (7 + 9n)
-28 + 21n = 7 + 9n + 7

Reorder the terms:
-28 + 21n = 7 + 7 + 9n

Combine like terms: 7 + 7 = 14
-28 + 21n = 14 + 9n

Solving
-28 + 21n = 14 + 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 = 14 + 9n + -9n

Combine like terms: 21n + -9n = 12n
-28 + 12n = 14 + 9n + -9n

Combine like terms: 9n + -9n = 0
-28 + 12n = 14 + 0
-28 + 12n = 14

Add '28' to each side of the equation.
-28 + 28 + 12n = 14 + 28

Combine like terms: -28 + 28 = 0
0 + 12n = 14 + 28
12n = 14 + 28

Combine like terms: 14 + 28 = 42
12n = 42

Divide each side by '12'.
n = 3.5

Simplifying
n = 3.5

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