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Equations & Systems

Level 16 / build-up

2-var Cramer - find y (mastery)

3 visual steps / 2-var Cramer find y

1. Coefficient D

Read y window in place, divide.Db7-4-59-6275same rowsDy7-62-575D = 43Dy = 215y = 5
D = 43.

D = 43.

2. Target Dy

Read y window in place, divide.Db7-4-59-6275same rowsDy7-62-575D = 43Dy = 215y = 5
Dy = 215.

Dy = 215.

3. y ratio

Read y window in place, divide.Db7-4-59-6275same rowsDy7-62-575D = 43Dy = 215y = 5
y = 5.

y = 5.

Practice Level 16

Keep the columns in place and solve one window at a time.

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