please help me with the questionthe answer choices are one solutionno solutionand infinitely many solutionsfor all the questions

Solution;
Suppose we try to solve system of linear equation using substitution and get the results;
[tex]\begin{gathered} 9=9 \\ \\ -7=4 \\ \\ x=8 \end{gathered}[/tex]ANSWERS:
System 1: Infinitely many solutions
System 2: No solution
System 3: One solution