Question

1/7 times x = 1
5/4 times x=1
3 1/2 times x=1
5/7 times x=1

Answer 1

( i )


`= > (1)/(7) * x = 1 \\ \\ \\ \\ = > (1)/(7) * 7 * x = 1 * 7 \\ \\ \\ \\ = > x = 7`



( ii ) :



`= > (5)/(4) * x = 1 \\ \\ \\ \\ = > (5)/(4) * (4)/(5) * x = 1 * (4)/(5) \\ \\ \\ \\ = > x = (4)/(5)`



( iii ) :



`= > 3(1)/(2) * x = 1 \\ \\ \\ \\ = > (7)/(2) * x = 1 \\ \\ \\ \\ = > (7)/(2) * (2)/(7) * x = 1 * (2)/(7) \\ \\ \\ \\ = > x = (2)/(7)`



( iv ) :



`(5)/(7) * x = 1 \\ \\ \\ \\ = > (5)/(7) * (7)/(5) * x = 1 * (7)/(5) \\ \\ \\ \\ = > x = (7)/(5)`