solve 1/2x + 1/4y- 1/3z=1/4 ;1/x=1/3y; 1/x-1/5y+4/z=2*2/5
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Find Mathematics textbook solutio...
Answer:
assume
1/x=a
1/y=b
1/z=c
you'll get 3 eqns in a,b,c
solve and then substitute to get x,y,z
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