Answer:
[tex]x=13[/tex]
Step-by-step explanation:
The angle on a straight line is always 180 degrees.
Thus,
[tex](12x-26)+50=180[/tex]
Remove the brackets:
[tex]12x-26+50=180[/tex]
[tex]12x+24=180[/tex]
Subtract 24 from both sides:
[tex]12x+24-24=180-24[/tex]
[tex]12x=156[/tex]
Divide both sides by 12:
[tex]\frac{12x}{12}=\frac{156}{12}\\[/tex]
[tex]x=13[/tex]
