carolinavalenc
carolinavalenc
28-09-2017
Mathematics
contestada
Step by step 3(4d+1)-9d=6(2-d)
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giusephinakris
giusephinakris
28-09-2017
Just use Math----- way
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tasnimhannan
tasnimhannan
28-09-2017
1. Expand
12d+3-9d=12-6d
2. Collect Like Terms
3d + 3 =12-6d
9d=9
3. Solve
(9d/9) = (9/9)
d=1
Answer Link
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