Answer :
add 7y to both sides and subtract 6 from both sides. you now have 10y=24
divide by 10 and you have y=2.4
divide by 10 and you have y=2.4
[tex]3y+6=30-7y\ \ \ \ | add\ 7y\\\\
10y+6=30\ \ \ \ | subtract\ 6\\\\
10y=24\ \ \ \ | divide\ by\ 10\\\\
y=2,4\\\\Solution\ is\ y=2,4.[/tex]