Answer:
x = 37°
Step-by-step explanation:
Linear pair:
If the non-common arms of two adjacent angles form a straight line, then they are called linear pair, and their sum is 180°.
3x + 1 + 68° = 180°
3x + 69° = 180°
Subtract 69 from both sides,
3x = 180° - 69°
3x = 111
Divide both sides by 3,
x = 111 ÷ 3
x = 37°
