book Maths Puzzle Numerical Ability

F(x)=x/(x+1)then
f(x-1)=

Read Solution (Total 0)

book Other Question

Hi I have a problem with a this question that I need help with.

(1)Translate into a variable expression "and" simplify:

"three times the difference of twice a number and twelve",
How do i start this problem? m-(3/8)> (1/2)