Question

please answer to my simultaneously linear equations.

Answer 1

$\frac{7x-2y}{xy}=5....(i)//7x-2y=5xy//$
$xy=\frac{7x-2y}{5}$
Now by putting the values in equation ii,we have,
$\frac{40x+35y}{7x-2y}=15$
$=>21x-3y=8x+7y$
$13x=10y=>x=\frac{10y}{13}$
Now by putting the value of x in i,we have,
=>44y/10y²=5
=>44/10y=5
=>44=50y
=>44/50=y
Again by putting the value of y,
xy=7x-2y/5
=>10 *(44/50)²/13=7x-88/50/5
=>10*1936/2500/13=7x-44/5
=>1936/3250+44/5=7x
=>30536/3250=7x
=>213752/3250=x
=>$\frac{106876}{1625}=x$