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How do you solve $3 k - 5 = 7 k + 7$ $3k - 5 = 7k + 7$ ?

1 Answer

Dec 27, 2015

$k = - 3$ $color(blue)(k=-3$

Explanation:

$3 k - 5 = 7 k + 7$ $3k-5=7k+7$

$3 k - 7 k = 5 + 7$ $3k-7k = 5+7$

$- 4 k = 12$ $-4k = 12$

$k = \frac{12}{- 4}$ $k=12/(-4)$

$k = - 3$ $color(blue)(k=-3$

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