Question

x minus 2 y barabar 0 3 + 4 y barabar 0​

Answer 1

3x+4y=20;

a2a1=31

c2b1=4−2=2−1

c2c1=−200=0

hope this will help you

Answer 2

$\mathfrak{equations \: \: \: are} \\ \\ \sf x - 2y = 0 \\ \\ \sf3x + 4y = 0$