For what value of a and b 2x 3y=7 a(x y)-b(x-y)=3a b-2 July 8, 2019 16 32 64 128 For what value of a and b 2x+3y=7 a(x+y)-b(x-y)=3a+b-2 For what values of a and b is the line 2x+y=b