Respuesta :

sreedevi102

Answer:

(3x) ° + (x+ 10)° = 90°

Step-by-step explanation:

(3x) ° + (x+ 10)° = 90°

3x + x + 10 = 90

4x = 90 - 10

4x = 80

x = 20

(3x) ° = 3 x 20 = 60°

(x + 10)° = 20 + 10 = 30°

MochiiBean

Answer: you can either do 3x°(x+10)° or (x+10)°+3x°

the choice is yours. Hope this helps