126 is the answer.
21
29 divided by 6 equals 4
3 x 7 = 21
6
14.4762
21
21
x = 21. 2 /7 = 6/x cross multiply, and you will see that 2x = 42 therefore, x must equal 21.
If you mean: 5x/7 -6 = x then x = -21
21
6 divided by 1 equals 6. 6 divided by 6 equals 1.
84 divided by 4 equals 21.