Question

Make x the subject of formula a=x+4/x+2

Answer 1

Hi,

x≠-2

Explanation:

`a=(x+4)/(x+2) \\\\a(x+2)=x+4\ (cross\ product)\\\\ax-x=4-2a\\\\x(a-1)=4-2a\\\\if \ a\\eq 1\\x=(4-2a)/(a-1)`