Question

x+y=15;y=x+3 simultaneous equation ​

Answer 1

Answer:

$x + y = 15 \\ x - y = 3 \\ \\ \\ adding \: this \: two \: equations.... \\ \\ we \: get \: \\ \\ 2x = 18 \\ therefore \\ x = 9 \\ \\ putting \: this \: value \: in \: any \: equation \: we \: get \: \\ y =7 \\ \\ (x.y) = (9.7)$

Step-by-step explanation:

this is ur answer