kaitlynnmarietwichel kaitlynnmarietwichel

19-02-2021
Mathematics

contestada

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.

Respuesta :

mesiya2005 mesiya2005

19-02-2021

Answer:

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