Question

prove 2nd and 3rd question guyzz .plzz guyzz its urgent!!!

Answer 1

a^2x + ay = 3

x= 1, y= 2

a^2 + 2a -3= 0

a^2 -a + 3a -3 = 0

a( a -1) +3( a-1)= 0

( a+3)(a-1)= 0

a= -3,1


3) -2y +3x = 14

-2y = 14-3x

y = -7 + 3/2 x