Question

X+4y=12
-2x-3y=-9 por favor ajude

Answer 1

x+4y=12
-2x-3y=-9
x+4y=12.(2)
2x+8y=24
-2x-3y=-9
5y=15
y=15/5
y=3
x+4y=12
x+4.3=12
x+12=12
x=12-12
x=0
x=0, y=3

Answer 2

x+4y=12 → x= -4y+12
-2-3y=-9→y= 7/3