What is 8/10 in it's simplest form?
1 answer:
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First, I should point out that g(x) should be written as g(x)=(x+2)/3, otherwise the problem is confusing.
(A)
(B) Since and
, it holds that
for all x. This means the composed functions are *identical*
if you isolate y in the top equation to get y=5x+6 then you can substiture y for 5x+6 in the bottom equation because thats what y equals
as of now you have -3x+6(5x+6)=-12 but if you use the distrubite property you would get -3x+30x+36=-12
then if you subtract 36 from both sides you would get -3x+30x=-48 then combine like terms to get 27x=-48 then divide both sides by 27 to get or x≈1.8