Question

Sistema: 3X-2Y=12 X=2Y

Answer 1

x-3y=-7

x=-7+3y

3x+2y=12

3(-7+3y)+2y=12

-21+9y+2y=12

11y=12+21

11y=33

y=33/11

y=3

x=-7+3y

x=-7+3.3

x=-7+9

x=2