Question

1/10у-1/9=10 Выразите у через х

Answer 1

1/10y-1/9x=10

1/10y=10+1/9x

y=10+1/9x / 1/10

y=(10+1/9x)*10

y=100+1 1/9x

Answer 2

$frac{1}{10}y-frac{1}{9}x=10\\frac{1}{10}y=frac{1}{9}x+10\\y=frac{frac{1}{9}x+10 }{frac{1}{10} } =(frac{1}{9} x+10)*10=1frac{1}{9}x+100\\y=1frac{1}{9}x+100$