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Equations & Systems

Level 10 / foundation

2-var Cramer - find y (small)

3 visual steps / 2-var Cramer find y

1. Coefficient D

Read y window in place, divide.Db112-151same rowsDy1521D = -3Dy = -9y = 3
D = -3.

D = -3.

2. Target Dy

Read y window in place, divide.Db112-151same rowsDy1521D = -3Dy = -9y = 3
Dy = -9.

Dy = -9.

3. y ratio

Read y window in place, divide.Db112-151same rowsDy1521D = -3Dy = -9y = 3
y = 3.

y = 3.

Practice Level 10

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

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