What is 2x+square root x+1=8 solve for x

Shelly bought a house five years ago for $150,000 and obtained an 80% loan. now the home is worth $140,000 and her loan balance has been reduced by $12,000. what is shelly's current equity?

Can anyone me get through my algebra 2 class? the only class i need to graduate..

Use the second shift theorem to find the inverse laplace transform of (e^−3s) / (s^2 + 2s − 3)