How do you solve for equilibrium price and quantity for three goods which are P^1,P^2,P^3 for demand and supply I'm economics. Qd 1 = 235 P 1 + P 2 +...

How do you solve for equilibrium price and quantity for three goods which are P^1,P^2,P^3 for demand and supply I'm economics.

Qd1 = 23−5P1 +P2 +P3

and

Qs1 =−8+6P1.

Then :

Qd2 = 15+P1 −3P2 +2P3Qs2 =−11+3P2.

Qd3 = 19+P1 +2P2 −4P3Qs3 =−5+3P3.