Question

solve 3x+y=15
2x-y=4​

Answer 1

Answer:

3x−y=0

⇒y=3x

Substitute y=3x in 2x+y=5

⇒2x+3x=5

⇒5x=5

∴x=

5

5

=1

Put x=1 in y=3x=3×1=3

∴x=1,y=3

Step-by-step explanation:

please. follow. me please.

Answer 2

Step-by-step explanation:

3x + y = 15

2x - y = 4

cut y because of different sign and add other values

5x = 19

x = 19 / 5

x = 3.8