100%/x%=350/75
(100/x)*x=(350/75)*x - we multiply both sides of the equation by x
100=4.66666666667*x - we divide both sides of the equation by (4.66666666667) to get x
100/4.66666666667=x
21.4285714286=x
x=21.4285714286
Hope this isnt complicated!
Hope it helps also!:)