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Alenkinab [10]
2 years ago
10

A.)23 B.)60 C.)53 D.)30

Mathematics
1 answer:
olga_2 [115]2 years ago
6 0

Answer:

ABC = 30

Step-by-step explanation:

The two angles are complementary so they add to 90 degrees

2x+14  + x+7  = 90

Combine like terms

3x+21 = 90

Subtract 21 from each side

3x+21-21 = 90-21

3x = 69

Divide by 3

3x/3 = 69/3

x = 23

ABC = x+7 = 23+7 = 30

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