Question

Answer 1

a,x=20.01

b,x=21.45

c,x=1/12

d,x=11/30

Answer 2

a) x = 40,1 - 20,09

x = 20,01

b) x = 30,5 - 9,05

x = 21,45

c) x = 5/6 - 3/4

x = 1/12

d) x = 7/6 - 4/5

x = 11/30

Answer 3

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

d, x + 4/5 = 7/6

            x = 7/6 - 4/5

            x = 11/30

Answer 4

a) x = 40,1 - 20,09

x = 20,01

b) x = 30,5 - 9,05

x = 21,45

c) x = 5/6 - 3/4

x = 1/12

d) x = 7/6 - 4/5

x = 11/30      nha