Equations & Systems Level 21: 3-var Cramer - find y (medium). 3-var Cramer find y.
1. Coefficient determinant
Question
Fade the RHS; read x, y, z in place.
2. Target determinant
Fade y; read x, z, RHS in place.
Skip to content 1. Coefficient determinantUse the coefficient columns. D = 57. 2. Target determinantKeep every column fixed; apply sign -. Dy = 114. 3. ReadUse the settled ratio. y = 2.