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Lorico [155]
3 years ago
13

-3(2n+1)+7=5pls help homework do tomorrow

Mathematics
2 answers:
WINSTONCH [101]3 years ago
6 0
Distribute the -3 to both 2n and 1 (inside the parenthesis)

-3 x 2n = -6n
-3 x 1 = -3

-6n - 3 + 7 = 5

simplify

-6n + 4 = 5

isolate the n

-6n + 4 (-4) = 5 (-4)

-6n = 1

-6n(/-6) = 1(/-6)

n = -1/6

hope this helps
Elza [17]3 years ago
5 0
- 6n - 3 + 7 = 5
- 6n + 4 = 5
- 6n = 1
n = - 1/6
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