0 = 7(n + 4)21
Use distributive property to multiply 7 by n and 4.
0 = (7n + 28)21
Use Distributive property to multiply 21 by 7n and 28.
0 = 147n + 588
Subtract 147n from both sides of the equation.
-147n = 588
Divide the entire equation by -147n.
n = -4
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