To determine the value of x
[tex]\begin{gathered} \text{ For parallel line } \\ 4x\text{ - 7 = 7x -16 (interior angle are equal) } \\ 4x\text{ -7x = -61 +7 } \\ -3x\text{ = -54} \\ \text{divide both side by -3} \\ \frac{-3x}{-3}\text{ = }\frac{-54}{-3} \\ x=18^0 \end{gathered}[/tex]
Hence the value of x = 18°
