Question

3x+y=7
6x+4y=22
can somebody help me solve this problem?

Answer 1

Hey there!


`\boxed{x=1;y=4}`


`3x + y = 7 \\ \\ 6x + 4y = 22`


`y = -3x + 7 \\ \\ Plug \ this \ in \ for \ variable \ (y) \ in \ equation \ \\ \\ 6x + 4*(-3x+7) = 22 \\ \\ -6x = -6 \\ \\ 6x=6 \ x+1 \\ \\ x=1 \ y=-3x+7 \\ \\ \boxed{y=-3(1)+7=4} \\ \\ \boxed{\boxed{x=1;y=4}}`

I hope this helps you!