Question

2bx+ay=2ab and bx -ay =4ab
by cross multiplication method

Answer 1

Answer:

x=2a,y=-2b

Step-by-step explanation:

2bx+ay=2ab

bx - ay=4ab

then

3bx=6ab

x=2a

and. bx-ay=4ab

b.2a-ay=4ab

-ay=4ab-2ab

-ay=2ab

y=-2b

Answer 2

Answer:

formula=x/b1c2-b2c1=y/c1a2-c2a1=1/a1b2-a2b1

x/ay×(-4ab) - {-ay×(-2ab)}=y/-2ab×bx-(-4ab×2bx)=1/2bx(-ay) - bx×ay

=x/-4a²yb-2a²yb=y/-2ab²x+8ab²x=1/-2bxay-bxay

=x/-6a²yb=y/6ab²x=1/-3bxay

1)x/-6a²yb=1/-3abxy

x=-6a²yb/-3abxy

x=2a

2) y/6ab²x=1/-3bxay

y=6ab²x/-3bxay

y=-2b