Question

VA ROGGG URGENTTT, d au 15 de punctee​

Answer 1

Răspuns:

A)  x=2y

x+3y=20

2y+3y=20

5y=20

y=4

B) x=3y

x+2y=15

3y+2y=15

5y=15

y=3

C)  y=4x

5x-y=2

5x-4x=2

x=2

D)  y=5x

7x-y=2

7x-5x=2

2x=2

x=1

Answer 2

Răspuns:

A) x=2y

x+3y=20

2y+3y=20

5y=20

y=4

B) x=3y

x+2y=15

3y+2y=15

y=3