-4n+21=7(3+n)

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Solution for -4n+21=7(3+n) equation:


Simplifying
-4n + 21 = 7(3 + n)

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

Add '-21' to each side of the equation.
21 + -21 + -4n = 21 + -21 + 7n

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

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

Solving
-4n = 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.
-4n + -7n = 7n + -7n

Combine like terms: -4n + -7n = -11n
-11n = 7n + -7n

Combine like terms: 7n + -7n = 0
-11n = 0

Divide each side by '-11'.
n = 0

Simplifying
n = 0

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