Question

х/9-4/9=0 помогите плиз

Answer 1

x/9-4/9=0
x/9=4/9
x=4
Ответ:x=4

Answer 2

x9 - 49 =0
x9 = 0 +49
x9 = 49
x  x 9 = 9x4
9x=36
x = 4