Question

4x + 2y = 20
x + y= 20
​

Answer 1

Answer:

x=-10 ; y=30

Step-by-step explanation:

4x+2y=20           x+y=20  → (1)

2x+y=10  → (2)

Subtract (1) from (2)

 2x+y-x-y=10-20

 x=-10

From (1)

y=20-x

 y=20-(-10)

 y=30

Answer 2

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in the attachment ☺️

hope it helps...❣️

#Follow Mee ☺️❣️