Can you help me solve this?

Can you help me solve this? When i solve it, i get different answers. Thanks.

Suppose that the price-supply and price-demand relationships are as follows:

(a)Determine the equilibrium price and the equilibrium quantity.

(b) Graph both functions. Provide the coordinated for all intersections with the coordinate axes as well as any points where the two curves cross.(The horizontal axis is q and the vertical axis is p.)