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

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


Simplifying
-21 + -1n = -7(-4n + 3)

Reorder the terms:
-21 + -1n = -7(3 + -4n)
-21 + -1n = (3 * -7 + -4n * -7)
-21 + -1n = (-21 + 28n)

Add '21' to each side of the equation.
-21 + 21 + -1n = -21 + 21 + 28n

Combine like terms: -21 + 21 = 0
0 + -1n = -21 + 21 + 28n
-1n = -21 + 21 + 28n

Combine like terms: -21 + 21 = 0
-1n = 0 + 28n
-1n = 28n

Solving
-1n = 28n

Solving for variable 'n'.

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

Add '-28n' to each side of the equation.
-1n + -28n = 28n + -28n

Combine like terms: -1n + -28n = -29n
-29n = 28n + -28n

Combine like terms: 28n + -28n = 0
-29n = 0

Divide each side by '-29'.
n = 0

Simplifying
n = 0

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