Question

X + 5y = 12 3x -y = 4 determinante​

Answer 1

Explicación paso a paso:

x+5y=12 x=12-5y

3x-y=4

3(12-5y)-y=4

36-15y-y=4

-16y=4-36

-16y=-32

y=2

x+5(2)=12

x+10=12

x=2