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For certain simultaneous equations, if ...

For certain simultaneous equations, if
`(i) D_(x)=12` and `D=4`, what is the value of `x`?
`(ii) D=-3` and `D_(y)=6`, what is the value of `y`?

Answer

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Knowledge Check

  • For simultaneous equations in x and y , if D_(x) = 39 , D_(y) = 26 and D = 13 , Then what is the value of x ?

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  • For simultaneous equations in x and y , if D = 30 , D_(x) = -18 , D_(y) = -12 , then what is the value of y ?

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    `-3/5`
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