10. If x=-1/2 y=1/4 z=0
a. 8z+2x-y
b.z-y+3x
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Step-by-step explanation:
a
8(0)+2(-1/2)-1/4
0-1-1/4
-4-1/4
-5/4
b) 0-1/4+3(-1/2)
0-1/4-3/2
-1-6/4
-7/4
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