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melomori [17]
3 years ago
14

What is the degree of (2x + 45)

Mathematics
1 answer:
lesya692 [45]3 years ago
5 0

Answer:180 degrees

Step-by-step explanation:Let "x" be the measure of the angle the problem is asking for.

"when twice of a angle is added to 45" is the angle  (2x+45)  degrees.

The problem says that the angle (2x+45) is the supplement to the given angle.

It means that

x + (2x + 45) = 180 degrees.          <<<---=== This equation is the exact meaning of the condition.

Simplify and solve this equation for x:

3x + 45 = 180  ====>  3x = 180 - 45 = 135

====>  x = 135/3 = 45 degrees.

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