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lisabon 2012 [21]

3 years ago

8

Solve for n: 7n – (4 – 2n) = 3(n + 5) - 1

1 answer:

Dmitriy789 [7]3 years ago

7 0

$7n - (4 - 2n) = 3(n + 5) - 1\\
7n-4+2n=3n+15-1\\
6n=18\\
n=3$

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