\( \left. \begin{array} { r r } { 6 ( x + 4 ) = 54 } & { \frac { 6 ( x + 4 ) } { 6 } = \frac { 54 } { 6 } } \\ { \frac { 6 x } { 6 } = \frac { 50 } { 6 } } & { x + 4 = 9 } \\ { x = \frac { 50 } { 6 } = 8 \frac { \pi } { 6 } = 8 \frac { 1 } { 3 } } & { - 4 = - 4 } \\ { } & { x = 5 } \end{array} \right. \)

In the early 20th century, algebra began to take on a more structured format with the teaching practices developed by educators. They focused on vital concepts such as solving equations. This marked a significant shift, making math more accessible to students and establishing building blocks for future mathematical exploration. In the real world, solving equations like this one can help in various fields, from engineering to finance. For instance, companies often use algebra to forecast expenses based on changing variables. By mastering these equations, you can apply mathematical concepts to optimize daily tasks, budget effectively, and make informed decisions based on numerical data!