n+4(3n+2)=21

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Solution for n+4(3n+2)=21 equation:


Simplifying
n + 4(3n + 2) = 21

Reorder the terms:
n + 4(2 + 3n) = 21
n + (2 * 4 + 3n * 4) = 21
n + (8 + 12n) = 21

Reorder the terms:
8 + n + 12n = 21

Combine like terms: n + 12n = 13n
8 + 13n = 21

Solving
8 + 13n = 21

Solving for variable 'n'.

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

Add '-8' to each side of the equation.
8 + -8 + 13n = 21 + -8

Combine like terms: 8 + -8 = 0
0 + 13n = 21 + -8
13n = 21 + -8

Combine like terms: 21 + -8 = 13
13n = 13

Divide each side by '13'.
n = 1

Simplifying
n = 1

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