Find the value of `-3/7+9/7`

Find the value of ( 3 + 5/-7 ) is :

Find the value of : ( 3/7 )^-1

Find the value of 7/9 - 1/3

Find the value of 9 - | - 7 |

If 7x + 3y + 9 = 0 and y = kx + 7 are two parallel lines then find the value of k. (a)9/7 (b)-7/3 (c)5/8 (d)6/5

Find the value of : -6/9 - ( -2/7 )

Find the value of ( -2 7/9 )^2

Find the value of   3 4/7 ÷ 7

Find the value of ((3)/(7))^(-3)times((-3)/(7))^(-3)

Find the value of |-7| xx|3|