Question

. If x+2y=15 and x+y=6,then find the value of x. *​

Answer 1

i think it is useful......

Answer 2

Answer:

$x + 2y = 15 \\ x + y = 6 \\ = > x = 6 - y \\ putting \: thevalue \: of \: x \: in \: \\ equation \: 1.we \: get \\ 6 - y + 2y = 15 \\ = > 6 + y = 15 \\ = > y = 9 \\ puttig \: the \: value \: \\ of \: y \: in \: x \: we \: get \\ x = 6 - 9 \\ = - 3$