Respuesta :

guacamayo1223

Answer:

X=11

Step-by-step explanation:

(10x+30)=140

-30 both sides

10x=110

Divide 10 both sides

X=11

veronicamedovoy

x=11

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Since 140 and 10x+30 are vertical angles, they are equal.

Equation: 140=10x+30

  • Subtract 30 from both sides of the equation.

140=10x

  • Divide both sides of the equation by 10.

You get x=10

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Hope this helped!!

           :D

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