![|6+9x|\le24](https://img.qammunity.org/2023/formulas/mathematics/college/ms4dpzy1zftumini2muhxjos8rlfs6snvx.png)
this is the correct way to solve these types of exercises
then we will try to do the same where a is (6+9x) and b is 24
![|6+9x|\le24\longrightarrow-24\le6+9x\le24](https://img.qammunity.org/2023/formulas/mathematics/college/recb0a8lo9mpuif3ooth3soqgq5i03g9nx.png)
and solve the right inequality for x
![-24\le6+9x\le24](https://img.qammunity.org/2023/formulas/mathematics/college/at1chcd0lhfegovcbpjly05p4csh8uondh.png)
subtract 6 for all expression
![\begin{gathered} -24-6\le6-6+9x\le24-6 \\ -30\le9x\le18 \end{gathered}](https://img.qammunity.org/2023/formulas/mathematics/college/h0d4d7wslu7kbjcj52ghrqwp18xb4l1ix5.png)
now divide on 9
![\begin{gathered} -(30)/(9)\le(9x)/(9)\le(18)/(9) \\ \\ -(10)/(3)\le x\le2 \end{gathered}](https://img.qammunity.org/2023/formulas/mathematics/college/q8w14az8ja5qfir12h81yb737od4c0l4w2.png)
ok, this means that the x values will be from -10/3 to 2 including these
Graph
solution is the red zone