(x-2)/6 = (3x-2)/5
(x-2)*5 = (3x-2)*6
5х-10=18х-12
13х=2
х=2/13
Ok so it's a proportion so this fraction is to this fraction. the smaller rectangle has sides 4 and 12. the larger one has 8 and x. so u set it up 4/12=8/x. the 4 and 8 r both the short sides so u want those on top and 12 and x r long sides so those on bottom. since that is not an answer option u can set it up as 8/4=x/12 because u still keep the variables of the same rectangle from being multipled with each other. so answer #2 is correct
is the same thing as
. We can rewrite this as
. Or course this is not simplified, so we can simplify to get
.
