How do you solve $- 7 (- 7 n - 3) = 168$ $-7( - 7n - 3) = 168$ ?

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Answer 1 · 2018-03-02T02:57:41

$n = 3$ $n=3$

You would start out by distributing out that $- 7$ $-7$

$- 7 (- 7 n - 3) = 168$ $-7(-7n-3)=168$

$(49 n + 21) = 168$ $(49n+21)=168$

$49 n + 21 = 168$ $49n+21=168$

Then subtract $21$ $21$ from both sides

$49 n = 147$ $49n=147$

Then divide both sides by $49 .$ $49.$

$n = 3$ $n=3$

How do you solve -7( - 7n - 3) = 168−7(−7n−3)=168-7( - 7n - 3) = 168?