If 4x+85x+8=56, then x = ?
(a) 4
(b) 6
(c) 8
(d) 12
4x+85x+8=566(4x+8)=5(5x+8) (By cross multiplication)24x+48=25x+40⇒ 24x−25x=40−48⇒ −x=−8⇒ x=8
If 2:9 :: x:27 then find the value of x.