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Help please!! Problem solving questions

"Show that if a and b are non-zero and 101ab-10a^2-10b^2=0 then either a is a tenth of b or b is a tenth of a.

ax+2y=1 and 2x+ay=b
under what conditions are there i) a unique solution ii) no solution iii) an infinite number of solutions

Please give me a hint/ explain these questions.

Many thanks
Original post by Hunkybm
"Show that if a and b are non-zero and 101ab-10a^2-10b^2=0 then either a is a tenth of b or b is a tenth of a.

ax+2y=1 and 2x+ay=b
under what conditions are there i) a unique solution ii) no solution iii) an infinite number of solutions

Please give me a hint/ explain these questions.

Many thanks
Try posting this in the maths study help forum where you will get a quick response. :-)
Moved to Maths.

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