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Equations & Systems

Level 14 / build-up

2-var Cramer - find y (signed)

3 visual steps / 2-var Cramer find y

1. Coefficient D

Read y window in place, divide.Db2-3-1517-19same rowsDy217-1-19D = 7Dy = -21y = -3
D = 7.

D = 7.

2. Target Dy

Read y window in place, divide.Db2-3-1517-19same rowsDy217-1-19D = 7Dy = -21y = -3
Dy = -21.

Dy = -21.

3. y ratio

Read y window in place, divide.Db2-3-1517-19same rowsDy217-1-19D = 7Dy = -21y = -3
y = -3.

y = -3.

Practice Level 14

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

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