3 years ago

Help. WORTH 15 POINTS!!!

Mathematics

1 answer:

Vanyuwa [196]3 years ago

8 0

Answer:

x=27

Step-by-step explanation:

The sum of the angles of a triangle are 180 degrees

90 + x+15 + 2x-6 = 180

Combine like terms

3x+99=180

Subtract 99 from each side

3x+99-99=180-99

3x =81

Divide each side by 3

3x/3 = 81/3

x=27

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