14-10-2016
Mathematics

Answered

Solve the system by substitution.

-x-y-z=-8

-4x+4y+5z=7

2x+2z=4

Verified Answer :

AlyssandraXD AlyssandraXD

14-10-2016

x=−y+8−z

2.x=−7−4y−5z (everything over 4)

3.x=2−z

1.y=-x+8-z

1.z=-x+4-y

2.y=7+4x-5x (everything over 4)

2.z=7+4x-4y (everything over 5)

3.z=2-x

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