Question

Doar c) Va rog mult
dau coroana​

Answer 1

Răspuns:

1.A+B=29 1.2×A-B=43 1.2×(A+B)=58

2.A+B=15 2.2×A-B=21 2.2×(A+B)=30

3.A+B=111 3.2×A-B=116 3.2×(A+B)=222

4.A+B=249 4.2×A-B=192 4.2×(A+B)=495

1.(A+B)-(A-B)=48

2.(A+B)-(A-B)=24

3.(A+B)-(A-B)=72

4.(A+B)-(A-B)=204