Thinking Summary · Step 1
Mastered[object Object]
[Discovery] A balance has 78 on the LEFT and 87 on the RIGHT. Add weight to the lighter pan until both pans match.
Step 1
Active Step[Discovery] A balance has 78 on the LEFT and 87 on the RIGHT. Add weight to the lighter pan until both pans match.
Balance Scale
Equation: Compare 78 vs 87