Respuesta :

liamctr

Answer:

15

Step-by-step explanation:

Complementary angles mean the two angles add up to 90 degrees. So the step by step would look like this;

3x + 10 + 2x + 5 = 90

5x + 15 = 90

5x = 90 - 15

5x = 75

x = 75/5

x = 15 :)

GracieLBowen

Answer:

5x + 10= 90

Step-by-step explanation:

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