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

A.)23 B.)60 C.)53 D.)30-example-1

1 Answer

2 votes

Answer:

ABC = 30

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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