Question

4(x-3)+y=0
3(x+3)-y=18

x+4/5-y=-1
x-6/5+y=-1

Por fa

Answer 1

4(x-3)+y=0
3(x+3)-y=18

4x-12+y=0
3x+9-y=18

4x+y=12
3x-y=9

7x=21
x=3

3(3)-y=9
9-y=9
y=0

-----------------------------------------------------------------

x+4/5-y=-1
x-6/5+y=-1

5x+4-5y=-5
5x-6+5y=-5

5x-5y=-9
5x+5y=1

10x=-8
x=-4/5

5(-4/5)+5y=1
-4+5y=1
5y=5
y=1

Answer 2

1. 4(x-3)+y=0
    3(x+3)-y=18
    
     4x-12+y=0
     3x+9-y=18

Resolvemos El Sistema

x=3
y=0

2. x+4/5-y=-1
    x-6/5+y=-1

Resolvemos El Sistema

x= -4/5
y=1