Ineed with questions 14-20
plz show work you
systems is really hard for me

14. 20x+3y=-6
-20x+10y=-20

13x=-26
x=-2
20+5y=-10
5y=-30
y=-6

15. 6x+6y=0
-6x+9y=-75

15y=-75
y=-5

6x-30=0
6x=30
x=5

16. -8x-8y=-16
8x+20y=-20

12y=-36
y=-3

-4x+30=10
-4x=-20
x=5

17. 14x-6y=12
-14x+7y=-7
y=5

7x-15=6
7x=21
x=3

18. -10x+15y=60
10x- 6y= 12

9y=72
y=8

10x-48=12
10x=60

x=6

19. 10x+10y=-30
-10x+30y=110

40y=80
y=2

10x+20=-30

10x=-50
x=-5

20. -12x+6y=18
-10x-6y=-18

-22x=0
x=0

0+3y=9
3y=9

y=3