Answers

2015-11-19T19:38:29+08:00
  • Brainly User
2015-11-19T23:04:18+08:00
2 (5+n) = 4
10 + 2n = 4
2n = 4 - 10
2n = -6
2n/2 = -6/2
n = - 3

The number is -3.

Check:
2 (5 + -3) = 4
2 (5 - 3) = 4
2 (2) = 4
4 = 4
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