Question

Hi Guys

plz help me out

x - 3y - 7 =0
3x - 3y - 15 =0​
which is unique solution

Answer 1

please make me brainlist

Answer 2

hey

x - 3y - 7 = 0 ..... (1)

3x - 3y - 15 = 0 ...... (2)

(1) - (2)

x - 3y - 7 - 3x + 3y + 15 = 0

- 2x + 8 = 0

2x = 8

x = 8/2

x = 4

sub x in (1)

4 - 3y - 7 = 0

-3 - 3y = 0

3y = -3

y = -3/3

y = -1

so (4,-1) is the unique solution

______ Thank you ______