Question

Regra de cramer 4x+2y=4 2x+y=5

Answer 1

4 2
2 1

4 + 4 = 8

D = 8

4 2
5 1

10 + 4 = 14

X=DX/D
X= 8/ 14
X= 0,57...

4 4
2 5

8 + 20 = 28

Y=DY/D
Y= 8/28
Y= 0,28

Espero ter ajudado...