Question

решить уравнение x+2/9=7/9

Answer 1

$x+ frac{2}{9}= frac{7}{9} ; x= frac{7}{9} - frac{2}{9}; x= frac{5}{9}$

Answer 2

x+2/9=7/9
x=7/9-2/9
x=5/9