stawar
stawar stawar
  • 13-10-2020
  • Mathematics
contestada

abc is isosceles triangle above is ac=20 and bc=3x-7 what is x

Respuesta :

vanillanekox3
vanillanekox3 vanillanekox3
  • 13-10-2020

Answer:

x = 9

Step-by-step explanation:

Isosceles means that the two sides equal each other

As such, to find the value of x we must equal the two expressions together and isolate the variable

20 = 3x - 7

add 7 to both sides

27 = 3x

divide both sides by 3

9 = x

Answer Link
NightHawk2145
NightHawk2145 NightHawk2145
  • 13-10-2020

Answer:

The variable x equals 9.

Step-by-step explanation:

3x - 7 = 20

3x = 27

X = 9

Answer Link

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