Question

3А+5В-4А-В при А= 5,3 и В= 1/3

Answer 1

3А+5В-4А-В=
4B-A

4*1/3-5,3= 4/3 - 5 3/10= 1 10/30 - 5 9/30= 1 10/30 - 4 39/30= - 3 29/30