Answer :
Explanation
- Given the equation.
[tex]7x + 4 = 4x + 7[/tex]
- Solve for the value of x by making x as the subject of equation.
[tex]7x - 4x = 7 - 4 \\ 3x = 3 \\ x = \frac{3}{3} \longrightarrow \frac{ \cancel{3}}{ \cancel{3}} = 1 \\ x = 1[/tex]
- Check the answer by substituting x = 1 in the equation.
[tex]7(1) + 4 = 4(1) + 7 \\ 7 + 4 = 4 + 7 \\ 11 = 11 \longrightarrow \sf{true} \: \: \green{ \checkmark}[/tex]
Hence, the solution is x = 1.
Answer
[tex] \large \boxed{x = 1}[/tex]