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Alenkinab [10]
3 years ago
12

Write an equation and then solve for x

Mathematics
2 answers:
mezya [45]3 years ago
7 0

Answer:

11x-63=(5x-11)+(2x+20)

x=18

Step-by-step explanation:

external angle Theorem: The external angle is equal the sum of the two other internal angles.

Then we have this equation:

11x-63=(5x-11)+(2x+20)

Solving this:

11x=63+7x+9

4x=72

x=18

Nata [24]3 years ago
4 0

Answer:

(5x-11)+(11x-63)+(2x+20)

Step-by-step explanation:

If you have to solve for it then just add all your like terms into a simplified equation. 18x-54 would be the simplified version

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Source:
http://www.1728.org/halflife.htm


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