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Bonjour

A = 6 x 2 + (- 3)/5

A = 12 - 3/5

A = (12 x 5) / (1 x 5) - 3/5

A = 60/5 - 3/5

A = 57/5

B = (6 - 8) x 5/4

B = - 2 x 5/4

B = - 10/4

B = (2  x - 5) / (2 x 2)

B = - 5/2

C = (3 + 5) / (3 - 4)

C = 8/- 1

C = - 8

D = (- 5) / (- 3 + 4) x 3

D=  - 5/1 x 3

D = - 15/1

D = - 15

E = (3 + (- 5)) / (- 3 + 4) x 3/5

E = (3 - 5) / 1 x 3/5

E = - 2 x 3/5

E = - 6/5.