3 years ago

Solve for z. x + y + z = 4 4x - y - z = 1 x + z = 2

Mathematics

2 answers:

AleksAgata [21]3 years ago

8 0

Answer:

z= 4-x-y

z= -1+4x-y

z= 2-x

babymother [125]3 years ago

4 0

Step-by-step explanation:

z = 2-x

y = -1-z +4x

substitute

x -1 -2+x +4x + 2 -x = 4

-1 + 5x = 4

5x = 5

x = 1

z = 1

1+y+1 = 4

y = 2

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