A set of vertically opposite angles are #8x-1 and 7x+13#. What is the value of #x#?

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Answer 1 · 2017-10-10T15:27:30

#x=14#

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Vertically opposite angles are always equal.

So:

#8x-1=7x+13#

Add #1# to both sides:

#8x-1+1=7x+13+1#

#8x=7x+14#

Subtract #7x# from both sides:

#8x-7x=7x-7x+14#

#x=14#