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iVinArrow [24]
2 years ago
9

Help Please!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Mathematics
1 answer:
Kamila [148]2 years ago
3 0

Answer:

x = 80°

Step-by-step explanation:

Angle on a straight line = 180°

(x + 40)° + (x - 20)° = 180°

x + 40° + x - 20° = 180°

2x + 20° = 180°

2x = 180° - 20°

2x = 160°

x = 160°/2

x = 80°

Check:

(x + 40)° + (x - 20)° = 180°

(80° + 40°) + (80° - 20°) = 180°

120° + 60° = 180°

180° = 180°

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Okay what is next then?
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brainliest? i answered first :) and i only need one more

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