Answer:
x = 5°
Step-by-step explanation:
Start off with 8x° + 50° = 90° because it shows that that is a right angle
Subtract 50° from both sides
8x° = 40°
Divide both sides by 8 to get x alone
x° = 5°
Check:
8(5)° + 50° = 90°
40° + 50° = 90°
90° = 90°
