Explicação passo-a-passo:

x/2= 8-3

x/2= 5

x= 5.2

x= 10

x/3 -1= 4

x/3= 4+1

x/3= 5

x= 5.3

x= 15

x/5+2= -3

x/5= -3 -2

x/5= -5

x= -5.5

x= - 25

x/6 +3= -4

x/6 = -4-3

x/6= -7

x= -7.6

x= - 42

x/7 -2= 4

x/7= 4+2

x/7= 6

x= 6.7

x= 42

x/10 - 6 = - 1

x/10 = -1 +6

x/10 = 5

x= 5.10

x= 50