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

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


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

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

Reorder the terms:
-28 + -4n = -21 + -3n

Solving
-28 + -4n = -21 + -3n

Solving for variable 'n'.

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

Add '3n' to each side of the equation.
-28 + -4n + 3n = -21 + -3n + 3n

Combine like terms: -4n + 3n = -1n
-28 + -1n = -21 + -3n + 3n

Combine like terms: -3n + 3n = 0
-28 + -1n = -21 + 0
-28 + -1n = -21

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

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

Combine like terms: -21 + 28 = 7
-1n = 7

Divide each side by '-1'.
n = -7

Simplifying
n = -7

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