7(3n-3)=(2n+1)+8

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Solution for 7(3n-3)=(2n+1)+8 equation:


Simplifying
7(3n + -3) = (2n + 1) + 8

Reorder the terms:
7(-3 + 3n) = (2n + 1) + 8
(-3 * 7 + 3n * 7) = (2n + 1) + 8
(-21 + 21n) = (2n + 1) + 8

Reorder the terms:
-21 + 21n = (1 + 2n) + 8

Remove parenthesis around (1 + 2n)
-21 + 21n = 1 + 2n + 8

Reorder the terms:
-21 + 21n = 1 + 8 + 2n

Combine like terms: 1 + 8 = 9
-21 + 21n = 9 + 2n

Solving
-21 + 21n = 9 + 2n

Solving for variable 'n'.

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

Add '-2n' to each side of the equation.
-21 + 21n + -2n = 9 + 2n + -2n

Combine like terms: 21n + -2n = 19n
-21 + 19n = 9 + 2n + -2n

Combine like terms: 2n + -2n = 0
-21 + 19n = 9 + 0
-21 + 19n = 9

Add '21' to each side of the equation.
-21 + 21 + 19n = 9 + 21

Combine like terms: -21 + 21 = 0
0 + 19n = 9 + 21
19n = 9 + 21

Combine like terms: 9 + 21 = 30
19n = 30

Divide each side by '19'.
n = 1.578947368

Simplifying
n = 1.578947368

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