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Equations & Systems

Level 25 / mastery

3-var Cramer - find z (mastery)

3 visual steps / 3-var Cramer find z

1. Coefficient D

Read z window from the same equations.Db3-2541-3-261172-21same equationsDz3-217412-26-21D = 183Dz = 183z = 1
D = 183.

D = 183.

2. Target Dz

Read z window from the same equations.Db3-2541-3-261172-21same equationsDz3-217412-26-21D = 183Dz = 183z = 1
Dz = 183.

Dz = 183.

3. z ratio

Read z window from the same equations.Db3-2541-3-261172-21same equationsDz3-217412-26-21D = 183Dz = 183z = 1
z = 1.

z = 1.

Practice Level 25

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

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