Question

решите уравнение 9-2x:3=7+x:3

Answer 1

9 - 2/3x = 7 + 1/3x
9-7 = 2/3x + 1/3x
2 = 3/3x
x=2

Answer 2

9-$frac{2}{3}$=7+x÷3
9-$frac{2}{3}$=7+$frac{1}{3}$x
-$frac{2}{3}$x-$frac{1}{3}$x=7-9
$frac{-2-1}{3}$x7-9
$frac{-3}{3}$x=7-9
-x=7-9
-x= -2
 x=2