Answers by visitors named: Elorm

(z x 4) x 3/14 =1 (2z + 4) 3/14 =1 6z +12/14 =1 14 (6z + 12 /14) =(1)14 6z + 12 =14 6z =14 - 12 6z = 2 6z/6 =2/6 z =3