Question

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Answer 1

Answer:

solution (x,y) = (3,2)

Step-by-step explanation:

hope it helps you didi or mate !!!

Answer 2

Answer:

1) 7x = 21

2) x = 21/7

3) x = 3

4) 5× 3 + 3y = 9

5) 3y = 9 - 15

6) 3y = -6

7) y = -6/3

8) y = -2

( x,y) = (3,-2).