Step 1
If t is the number of travelers to country B and 7.0 million more travelers visited country A, then the required expression will be;
![(t+7.0)\text{ million travelers}](https://img.qammunity.org/2023/formulas/mathematics/college/wwtscb8vdyvw47vgiduzfl239inlgax14c.png)
Step 2
The total travelers = 34.2million
Travelers to country A = (t+7.0) million
Travelers to country B= t million
![t+(t+7)=34.2\text{ million}](https://img.qammunity.org/2023/formulas/mathematics/college/oz561c9g0rxtrrywx5vba0wx1x7fzrsg3i.png)
Step 3
If we solve the equation we will have,
The answers will be;
![\begin{gathered} t+t+7=34.2 \\ 2t+7=34.2 \\ 2t=34.2-7 \\ t=13.6million \end{gathered}](https://img.qammunity.org/2023/formulas/mathematics/college/krj7iglmzrnr82jn2k1tgc58sibo9fj3dl.png)
![\begin{gathered} 13.6\text{ million travelers visited country B} \\ 20.6\text{ million travelers visited country A} \end{gathered}](https://img.qammunity.org/2023/formulas/mathematics/college/b2mowc1nxgnc13jhfh2mhwnmqnepndm1ma.png)