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I. 2a + 2b - c + d = -5 II. a + b + d = -2 III. 3a - b + 2c -d = 18 IV. 4b = -c Hint: Solve for c first in IV. Solve for any variable in II next. Solve I then.
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I. 2a + 2b - c + d = -5

II. a + b + d = -2

III. 3a - b + 2c -d = 18

IV. 4b = -c

Hint:

Solve for c first in IV.

Solve for any variable in II next.

Solve I then.

User Jefry
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Answer:

Wat

Explanation:

Kind of question is this

User Kayle
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