3 years ago

Solve for x in geometry

Mathematics

1 answer:

vekshin13 years ago

4 0

Answer:

x = 3

Step-by-step explanation:

The exterior angle of a triangle is equal to the sum of the 2 opposite interior angles.

28x - 2 is an exterior angle of the triangle, thus

28x - 2 = 15x - 3 + 40 = 15x + 37 ( subtract 15x from both sides )

13x - 2 = 37 ( add 2 to both sides )

13x = 39 ( divide both sides by 13 )

x = 3

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Find the GCF. (Greatest Common Factor) Use^ to show exponents if<br> needed. *<br> 3x5 + 6x + 6

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