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What is the value of x?

What is the value of x?-example-1
User Supercoolville
by
2.8k points

2 Answers

15 votes
15 votes

Answer:


\tt x=10^o

Explanation:

The given angles are supplementary angles, meaning they add up to 180°.


\tt 100+ 9x - 10 = 180^o


\tt 90 + 9x = 180^o


\tt 90+9x-90=180-90\:\: (Subtract)


\tt 9x=90


\tt \cfrac{9x}{9}=\cfrac{90}{9}\;\;(Divide)


\tt x=10^o

~

User Edward Newsome
by
2.7k points
15 votes
15 votes

Answer:

x = 10

Explanation:

the two angles shown are supplementary, they add up to 180 degrees

so we can write this equation to solve for 'x':

100 + 9x - 10 = 180

90 + 9x = 180

9x = 90

x = 10

User Wubinator
by
3.3k points