A 12 lb weight is positioned 8 in. from a fulcrum. At what distance from the fulcrum must an 18 lb weight be positioned to keep the scale balanced?

12.5 feet

step-by-step explanation:

ou would have 12 of each

an

y = 6x -3y -12

y +3y +12 = 6x

=> . x = { 2y / 3 +2 } this is equation of line in terms of x

=> . if line meets the x-axis the co-ordinates of meeting point would be ( x , 0 )

=> . x = 2 ( 0 ) / 3 + 2

=> . x = 2

so, the point is ( 2 , 0 )