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Find the measure of the angle indicated in bold

Find the measure of the angle indicated in bold-example-1
User Yin Zhu
by
8.4k points

1 Answer

6 votes

Answer:

x=5

Explanation:

hey there

the angles given are corresponding angles meaning that they are congruent

so we set up an equation

23x-5=21x+5

step 1 subtract each side by 5

5-5 cancels out

-5-5=-10

now we have

23x-10=21x

step 2 subtract each side by 23x

21x-23x=-2x

now we have

-2x=-10

step 3 divide each side by 2

-10/-2=5

so we can conclude that

x=5

User Piotr Wojsa
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