Mathematica Troubleshooting Mathematica 5: How to Fix Common Issues with Solving Equations

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The issue arises from the input format in Mathematica 5 when attempting to solve the equations "ax + by == 0" and "cx + dy == 1". The output "{{}}" indicates that the system did not find a solution, likely due to the incorrect interpretation of the variables. It is crucial to ensure proper spacing between coefficients and variables, such as using "a x" instead of "ax". This distinction allows Mathematica to correctly interpret the expression as a product of "a" and "x", which is essential for obtaining the desired solution.
KenKEN Stone
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When i input "Solve[{ax + by == 0, cx + dy == 1}, {x, y}]", the machine answered "{{}}", the answer is not what i want, i want to know if my mathematica 5 has some problems.
 
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Make sure you put a space between the factors like e.g. the "a" and the "x" in "a x". Otherwise Mathematica will see a variable "ax" which is not the same as "a" times "x"
 

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