Find the solution to the system of equations down below x+y+z=-1 x-y+z=-1 x+y-z=3a) (-2,4,-3)b) (1/2,0,1/2)c) (1,0,-2)d)3/2,3/2,0)

C.

1,0,-2

you solve by substitution

x=1

y=0

z= -2

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i just did this and got a 100.

pe = weightxheight = 2000x1000=2,000,000joules