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Re: If a, b, and c are three different numbers and x/(b - c) = y/(c - a) =
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07 Apr 2019, 22:28
From given equation we know that a, b, c can't be equal so, Let a=1,b=2,c=3, Then the given equation will become x=-y/2=z Now put all the values of a, b, c in ax+by+cz =x+2y+3z Now as x=-y/2=z The equation will become =-y/2+2y-3y/2 =0
Why are we sure that we can substitute the values with any number?
Kind regards!
as no. of equations is less than no. of variables and if the equation is correct with one or more solution then we can take any value of a,b,c provided they are not equal, these values have to satisfy the equation.
gmatclubot
Re: If a, b, and c are three different numbers and x/(b - c) = y/(c - a) =
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18 Apr 2019, 18:12
close
65% (02:02) correct 
