21+n=7(7n+3)

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Solution for 21+n=7(7n+3) equation:


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

Reorder the terms:
21 + n = 7(3 + 7n)
21 + n = (3 * 7 + 7n * 7)
21 + n = (21 + 49n)

Add '-21' to each side of the equation.
21 + -21 + n = 21 + -21 + 49n

Combine like terms: 21 + -21 = 0
0 + n = 21 + -21 + 49n
n = 21 + -21 + 49n

Combine like terms: 21 + -21 = 0
n = 0 + 49n
n = 49n

Solving
n = 49n

Solving for variable 'n'.

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

Add '-49n' to each side of the equation.
n + -49n = 49n + -49n

Combine like terms: n + -49n = -48n
-48n = 49n + -49n

Combine like terms: 49n + -49n = 0
-48n = 0

Divide each side by '-48'.
n = 0

Simplifying
n = 0

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