Question

2x-3(y-1)=9 four solutions for x and y

Answer 1

Answer:

2x-3y+3=9

=2x-3y=6

=x=(6+3y)/2

if y=1

x=9/2=4.5

if y=0

x=3

if y=-2

x=0

Answer 2

2x-3(y-1)=9

=2x-3y-3=9.

....put y=0

2x-3(0)-3=9

=2x-3=9

=2x=12

x=6

....put y=2

2x-3(2)-3=9

=2x-9=9

=2x=18

x=9

....put y=1

2x-3(1)-3=9

=2x-6=9

=2x=3

x=3/2

....put x=0

2(0)-3y-3=9

=-3y=12

=y=12/-3

y= -4