nilai x lada gambar di samping adalah a.123° b.118° c.69° d.59°

[tex]2x + {5}^{0} + {57}^{0} = {180}^{0} \\ 2x = {180}^{0} - {62}^{0} \\2x = {118}^{0} \\ x =( \frac{118}{2} )^{0} \\
x = {59}^{0} [/tex]