A) Use the clue and the diagram to write a pair of simultaneous equations.
B) Solve the equations to find x and y
C) Check your solution to see if it makes the seesaw balance
Problem 16. The sum of the weights is 24.
- Fulcrum equation Ax = By where A and B are the respective weights and x and y are the distant between them needed for balancing
I'm really stuck on this one, I was able to get the answer but not by the substitution method.
So its the weight as A and B so I get A + B = 24
A(3) = B(5) so in my head I calculate a few pairs, 3 x 5 = 15 but 3 + 5 only = 8 so the next pair would be 10 and 6 which is still to small so I move on to 15 and 9 which does = 24 and solves the equation but I failed to use the substitution method which to me means I haven't really solve the problem.