I need help doing angle pairs transversal in 2 step equation there's some examples I need help in 4(2x) (3x - 26)

(2x)°=(3x-26)°
⇔ (2x-3x)°=-26°
⇔-x°=-26°
⇔x=26°
⇒2x=26°*2=52°
⇒3x-26= 26°*3-26°= 78°-26°=52°