5+3n=7(n+3)

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


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

Reorder the terms:
5 + 3n = 7(3 + n)
5 + 3n = (3 * 7 + n * 7)
5 + 3n = (21 + 7n)

Solving
5 + 3n = 21 + 7n

Solving for variable 'n'.

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

Add '-7n' to each side of the equation.
5 + 3n + -7n = 21 + 7n + -7n

Combine like terms: 3n + -7n = -4n
5 + -4n = 21 + 7n + -7n

Combine like terms: 7n + -7n = 0
5 + -4n = 21 + 0
5 + -4n = 21

Add '-5' to each side of the equation.
5 + -5 + -4n = 21 + -5

Combine like terms: 5 + -5 = 0
0 + -4n = 21 + -5
-4n = 21 + -5

Combine like terms: 21 + -5 = 16
-4n = 16

Divide each side by '-4'.
n = -4

Simplifying
n = -4

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