6x+5y=150 3x+2z=350 How can i find x,y,z from just two equations?
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Originally Posted by Mhmh96 6x+5y=150 3x+2z=350 How can i find x,y,z from just two equations? This system is undetermined . Solution is given by : $\displaystyle (x,y,z)=\left(x,\frac{150-6x}{5},\frac{350-3x}{2}\right)$
What if i want to compare 5y and 2z?
Originally Posted by Mhmh96 What if i want to compare 5y and 2z? Then you should compare : $\displaystyle (150-6x)~\text{and}~(350-3x)$
But how if i dont know the value of x?
Originally Posted by Mhmh96 But how if i dont know the value of x? You can compare them only if you know value of x .
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