The questions are in the images pls answer all or your answer will be deleted because this is for a lot of points and im losing expert rank to post

1)

x + 2y = 21

+ -x + 3y = 29

5y = 50

y = 10

x + 2(10) =21

x = 1

2)

6x + 6y = 30

+ 15x - 6y = 12

21x = 42

x = 2

6(2) + 6y = 30

6y = 18

y = 3

1. 22

2. 1

3. 7

4. 18

step-by-step explanation

e2020 got it right