Solve the following by using cross-multiplication x-5-y-15-1-3- -1 x-3-y-5-1-5-2

x5+ y15= 13 3x+y=5 15x+5y=25 x3+ y5= 15 5x+3y=3 15x+9y=9 9y 5y=9 25 4y= 16 y= 4 x=3 ...

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Elimination Method

Solve the fol...

Question

Solve the following by using cross-multiplication
$\frac{x}{5} + \frac{y}{15} = \frac{1}{3} \dots . (1)$
$\frac{x}{3} + \frac{y}{5} = \frac{1}{5} \dots (2)$

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