Question

which of the following is a solution of x+y=5,2x+y=3?

Answer 1

Answer:

(-2,7)

Step-by-step explanation:

Bg subtitution method

x+y=5

x=5-y(1st eq)

2x+y=3

From 1st eq x=5-y

2(5-y)+y=3

10-2y+y=3

10-y=3

-y=3-10

-y=-7

y=7

subtitute y value in 1st eq

x+y=5

x+7=5

x=5-7

x=-2

so the solution is (-2,7)

I hope this answer may help you