12
-----
d
The quotient of 12 divided by the difference of 3 times d minus 3
5 answers
the answer is 12 because 12 divided by 3 is 4 and 4 times 3 is 12
12 divided by [the difference of (3 times d) minus 3]
12/(3d - 3) = 4/(d-1)
12/(3d - 3) = 4/(d-1)
12
-------- =
3 d - 3
3 ∙ 4
------------- =
3 ∙ ( d -1 )
4
-----
d -1
-------- =
3 d - 3
3 ∙ 4
------------- =
3 ∙ ( d -1 )
4
-----
d -1
2. d=3
1 answer