a) x+3/9*x=16
x+ 3*x/9 =16
12x/9=16
4x/3=16
4x=16*3
4x=48
x=12
b)x+ 6/9 *x =25
x+ 6x/9 =25
15x/9=25
15x=25*9
15x=225
x=15
c) x+ 83-8/90 * x=44
x+ 75/90 * x=44
x+ 75x/90=44
165x/90=44
165x=90*44
165x=3960
x= 24
D)x- 16-1/90 *x=35
x- 15/90 *x=35
x- 15x/90=35
90x-15x/90=35
75x/90=35
75x=35*90
75x=3150
x= 42
:)
