Equations & Systems Level 14: 2-var Cramer - find y (signed). 2-var Cramer find y.
1. Coefficient determinant
Question
Fade the RHS; read x, y in place.
2. Target determinant
Fade y; read x, RHS in place.
Skip to content 1. Coefficient determinantUse the coefficient columns. D = 7. 2. Target determinantKeep every column fixed; apply sign +. Dy = -21. 3. ReadUse the settled ratio. y = -3.