Question

What is -2+6y=18 3y=15 ?

Answer 1

`\left \{ {{-2+6y=18} \atop {3y=15}} \right. \\ +2+2 \left \{ {{6y=20} \atop {3y=15}} \right. \\ /3/3 \left \{ {{6y=20} \atop {y=5}} \right.\\ /6/6 \left \{ {{y=3 (1)/(3) } \atop {y=5}} \right.`

Answer 2

`-2+6y=18\ \ \ |add\ 2\ to\ both\ sides\\6y=20\ \ \ \ \ |divide\ both\ sides\ by\ 6\\y=(20)/(6)\\\\\boxed{y=(10)/(3)}\\---------------------\\\\3y=15\ \ \ \ \ |divide\ both\ sides\ by\ 3\\\\\boxed{y=5}`