2 years ago

Ok now help me please!!

Mathematics

1 answer:

Alisiya [41]2 years ago

8 0

Answer:

x = 9

Step-by-step explanation:

The linear pair have a sum of 180°, thus

3x + 15x + 18 = 180

18x + 18 = 180 ( subtract 18 from both sides )

18x = 162 ( divide both sides by 18 )

x = 9

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