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Sagot :
Answer:
x = 20
Explanation:
- The angle is a complementary angle, it equals 90°
(3x + 1)° + 29° = 90°
- Simplify both sides of the equation
3x + 1 + 29 = 90
3x + 30 = 90
- Subtract 30 from both sides
3x + 30 − 30 = 90 − 30
3x = 60
- Divide both sides by 3
3x / 3 = 60 / 3
- x = 20
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