find the values of x, y and z given that
7x+2y+z=21
3y-z=5
-3x+4y-2z=-1
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Step-by-step explanation:
syhshsIn tossing 3 fair coins together, the probability that 2 coins show the same face upwards will be a)1/4 b)1/2 c)2/3 d)3/4
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