[tex]\tt Step-by-step~explanation:[/tex]
To solve for x, we need to know that the angles inside of a triangle is always equal to 180º.
[tex]\tt Steps:[/tex]
Since all the angles added together are equal to 180º, we simply have to add the two given angles and subtract that from 180º.
[tex]\tt 43+60=103\\180-103=77\\x=77[/tex]
[tex]\large\boxed{\tt Our~final~answer: ~x=77}[/tex]
