keke2248
keke2248 keke2248
  • 23-02-2019
  • Mathematics
contestada

I need help with 4 5 7 8 and 10 ASAP!!

I need help with 4 5 7 8 and 10 ASAP class=

Respuesta :

abrundage377 abrundage377
  • 23-02-2019

Step-by-step explanation:

4.) B. 30  Vertical angles are equal.

3x+20=4x-10

3x+20=4x-10

-4x       -4x                 (SUBTRACT 4X TO ISOLATE THE "X" VARIABLE)

-------------------

-1x+20=-10

   -20    -20

------------------

-1×-1x=-30×-1

x=30

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