Cross-Multiplication Method of Finding Solution of a Pair of Linear Equations
In a fraction...
Question
In a fraction twice the numerator is 2 more than the denominator . If 3 is added to the numerator and to the denomenator, the new fraction is 23. Find the origional fraction.
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Solution
Let the original fraction be xy
Twice the numerator2x=2 more than the denominator=y+2