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A pair of vertical angles has measures (3x+4)° and (7x−9)° .

What is the value of x?


A. −54

B. 13/4

C. 192 ​

​D. 372 ​

Respuesta :

wegnerkolmp2741o

Answer:

B. 13/4

Step-by-step explanation:

Vertical angles are equal

3x+4 = 7x-9

Subtract 3x from each side

3x-3x+4 = 7x-3x-9

4 = 4x-9

Add 9 to each side

4+9 = 4x-9+9

13 = 4x

Divide each side by 4

13/4 = 4x/4

13/4 =x

christianlaineowym1m

Answer:

the answer would be B

Step-by-step explanation:

if they are vertical angles, it means that they are congruent.

3x+4=7x-9

4=4x-9

13=4x

[tex]\frac{13\\}{4}[/tex]=x

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