Question

Need quick help with this math best answer gets brainliest

Answer 1

$\frac{1}{2} x+6(x+15)=12\\\\\frac{1}{2} x+6x+90=12\\\\6\frac{1}{2} x+90=12\\6\frac{1}{2} x=-78\\x=-12$

$y=x+15\\y=-12+15\\y=3$