Answer:
t=124
Step-by-step explanation:
The angles inside a triangle must add to 180, so
31+t-49+t-50=180
Combine like terms
t+t+31-50-49=180
Now, we need to isolate the variable, t
2t-68=180
Add 68 to both sides
2t=248
Divide by 2 on both sides
t=124
