1, and the solution of the previous equation is: x=(2m-7)/3.

The solution of the latter equation is: x=(2-m)/2.

Now the topic says: the former solution is smaller than the latter one 1.

Namely: (2m-7)/3+ 1=(2-m)/2.

Found that m=2

The solution of the equation also came out.

2. It has been said before when there is a solution and when there is no solution.

In (1), we can turn the equation into x=(3-b)/(a+ 1) without solution.

Then numerator ≠0 denominator = 0

That is, a=- 1 b≠3.

In (2), the equation is the same, and x=(3-b)/(a+ 1) requires all the solutions to be real numbers.

Then numerator = 0, denominator = 0.

That is, a=- 1 b=3.