3 years ago

What does x= What does x=

Mathematics

1 answer:

tiny-mole [99]3 years ago

4 0

Answer:

Step-by-step explanation:

the angles of a triangle all add up to 180

thus, we can combine every term given and set them equal to 180 and solve for x

$9x + 72 = 180 \\ 180 - 72 = 108 \\ 108 \div 9 = 12$

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