Question

Calculeaza a×b stiind ca: 73-5×a=53 b×6+25=43

Answer 1

Răspuns:

73-5×a=53

Avem nevoie să aflăm a

a= (73-53):5

a= 4

73-5×4= 53

Răspuns final: a=4

b×6+25=43

b= (43-25):6

b= 18:6

b= 3

3×6+25= 43

Răspuns final: b=3

Answer 2

73-5•a=53

5•a=73-53

5•a=20

a=20:5

a=4

____________________________

b•6+25=43

b•6=43-25

b•6=18

b=18:6

b=3

____________________________

4•3=12(a•b)