Question

What is the value of n in the equation –(2n + 4) + 6 = –9 + 4(2n + 1)?

Answer 1

THE ANSWER IS 1

Explanation:

Answer 2

5/2

Explanation:

Start by eliminating parentheses.

... 2n +4 +6 = -9 +8n +4

... 10 = -5 +6n . . . . subtract 2n

... 15 = 6n . . . . . . . add 5

... 15/6 = n = 5/2

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Check

(2·5/2 +4) +6 = -9 +4(2·5/2 +1)

5 +4 +6 = -9 +4(5 +1)

15 = -9 +24 . . . . . true, so the answer checks OK