a)x=40,1-20,09
x=20,01
b)x=30,5-9,05
x=2
c)x=5/6-3/4
x=1/12
a) x+20,09=40,1
x = 40,1 - 20,09
x = 20,01
b) 30,5-x=9,05
x = 30,5 - 9,05
x = 21,45
c) 5/6-x=3/4
x = 5/6 - 3/4
x =1/12
a/ x+20,09=40,1 b/30,5-x=9,05
x=40,1-20,09 x=30,5-9,05
x=20,01 x=21,45
c/5/6-x=3/4
x=5/6-3/4
x=1/12