Question

2is (2,7) a solution of 3x-2y = -8 as well as 3x + 2y=20​

Answer 1

mate

pls mention a

complete question

so that

we can able to understand what to find

and how to do

Answer 2

Answer:

3x-y=3

7x+2y=20

2(3x-y)=3×2=6

6x-2y=6

7x+2y=20

subtracting both sides

7x+2y-(6x+2y)=20-6

7x+2y-6x-2y=14

x=14

3×14-y=3

42-y=3

y=42-3=39