Stage: 4 Challenge Level: 
Swap the positions of the 2 unit and the 3 unit weights then adjust either of these inwards or outwards until you find a balance.
alphas. Stage 5 - Reviewed 2012. Moment of a force. Mathematical reasoning & proof. Creating expressions/formulae. Graphs. Stage 5 - Core Mapping. Inequality/inequalities. epsilons. Manipulating algebraic expressions/formulae.
Published January 2006.
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