Question

y/y+7=2 How do I know what y is? please explain, thx

Answer 1

\(\frac{y}{y+7}=2\)
multiply both sides by y+7
\(y=2(y+7)=2y+14\)
subtract y from both sides, subtract 14 from both sides
\(y=\large ?\)

Answer 2

Thanks!