Respuesta :

Answer:

Step-by-step explanation:

1. x=45 y=90

2. x=40 y=40

3. x=12 because each angle would be 60, then you would divide that by 5 to get 12.

4. x= 40

5. 6x-9=2x+7

4x=16

x=4 - answer

6. 2x=3x-7

-x=-7

x=7 -answer

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