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Does anyone know how to do those I’m confused:/
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18 votes
Does anyone know how to do those I’m confused:/

Does anyone know how to do those I’m confused:/-example-1
User Sukhwinder
by
4.4k points

1 Answer

7 votes

All of the angles when combined should equal 180 degrees.

So...

180 = 2x - 10 + 4x + 4x + 10 Combine like terms

180 = 10x -10 +10 Add

180 = 10x Divide both sides by 10 to isolate the variable

18 = x

check your work now...

2(18) - 10 = 26

4(18) = 72

4(18) + 10 = 82

82 + 72 + 26 = 180

User Stomper
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4.3k points
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