Question

Need help pls pls pls

Answer 1

`\begin{gathered} \text{first equation} \\ 8-x=11 \\ x=8-11 \\ x=-3 \\ In\text{ this equation 3 is not a solution} \\ \\ \text{second equation} \\ x+7=4 \\ x=4-7 \\ x=-3 \\ In\text{ this equation 3 is not a solution} \\ \\ third\text{ equiation} \\ 5+x=9 \\ x=9-5 \\ x=4 \\ In\text{ this equation 3 is not a solution} \\ \\ \text{fourth equation} \\ x-2=1 \\ x=1+2 \\ x=\text{ 3} \\ In\text{ this case 3 is a solution for the equation} \end{gathered}`