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Solve for d. 19d -16d-d-d-1 = 12
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4 votes
Solve for d.
19d -16d-d-d-1 = 12

User CXL
by
5.2k points

1 Answer

2 votes

Answer:

d = 13

Explanation:

19d - 16d - d - d - 1 = 12

19d + (-16 - 1d - 1d) - 1 = 12

19d + (--18d) - 1 = 12

19d - 18d - 1 = 12

1d = 12 + 1

d = 13

Check:

19*13 - 16*13 - 13 - 13 - 1 = 12

247 - 208 - 26 - 1 = 12

39 - 27 = 12

User Moshik
by
5.6k points
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