question about supreme court cases?

Question

does every case that passes through the supreme court have a concurring and dissenting opinion?

Answer 1

No. Sometimes they all agree, so there is no dissent.

Answer 2

Normally, one Supreme Court Justice is assigned to write the majority opinion when a case is decided. Justices who do not agree with the decision of the majority are free to write dissenting opinions. Sometimes all the dissenting Justices join together and select one of their number to write a minority opinion. Sometimes individual dissenters write their own opinions. Sometimes Justices who agree with the majority decision but don't agree with every aspect of the majority's thinking write concurring opinions. Essentially, a concurring opinion says, "I voted with the majority and I agree with the way the case was decided, but I have some differences with the other majority Justices about their reasons for the decision." A case that is decided unanimously might produce just one opinion, and any case could, in theory, produce nine separate opinions.

Answer 3

Not if the ruling is unanimous, such as Brown vs. Board of Education of Topeka (1954)